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GPT-6 Astra in production

Every number on this page comes from calls that actually ran and were actually billed on this platform. Nothing here is an estimate.

The short version

• List price is $10.00 per 1M input and $50.00 per 1M output, with cache reads at $1.00 per 1M. We did not take that from a press release — we reconciled it against real invoices, and the arithmetic is shown below.
• Cache reads decide the bill. Across our own traffic, 77% of all input tokens arrived as cache reads. Billed at a tenth of the input rate, they saved more money than the entire remaining invoice.
• There is a cliff at 272,000 input tokens. Cross it and the whole request reprices at a higher rate — not just the tokens past the line.
• It is not a high-frequency model. Median first token in our measurements was 6,651.5 ms and a long generation ran to 467 seconds. For classification or routing, a smaller model is both cheaper and faster.

List price, verified against an invoice

Most pages quote a vendor's list price. Here is ours checked against a real billed call — the first gpt-6-astra request that ever ran on this platform:

input       19,972 tokens  ×  $10.00 / 1M  =  $0.19972
output          36 tokens  ×  $50.00 / 1M  =  $0.00180
cache read   3,840 tokens  ×  $ 1.00 / 1M  =  $0.00384
                                              ─────────
                                              $0.20536

invoice line for that call:                   $0.205360

Exact to the last digit, and it holds across all 552 calls we have measured. That is the whole reason to trust the rest of this page: the prices below are not copied, they are reconciled.

What it actually cost us

Every call to this model on this platform, with the numbers the billing system recorded. No selected highlights, no rounded-off example session.

Input	Output	Cache read	List price	First token	Total
19,972	36	3,840	$0.205360	2,068 ms	3.3 s
564	17	23,296	$0.029786	2,191 ms	3.0 s
592	36	23,296	$0.031016	1,713 ms	2.8 s
20,759	118	3,840	$0.217330	5,447 ms	9.4 s
1,246	129	24,320	$0.043230	4,637 ms	8.6 s
387	1,643	25,344	$0.111364	8,377 ms	57.8 s
23,072	113	0	$0.236370	717 ms	131.7 s
991	67	22,272	$0.035532	668 ms	8.8 s
19,428	193	0	$0.203930	684 ms	96.7 s
2,081	159	19,200	$0.047960	766 ms	9.3 s
2,311	2,477	19,200	$0.166160	775 ms	106.8 s
4,250	67	20,224	$0.066074	795 ms	5.2 s
583	107	25,344	$0.036524	660 ms	22.6 s
676	52	25,344	$0.034704	961 ms	161.6 s
549	14	3,840	$0.010030	0 ms	15.6 s
572	3,213	3,840	$0.170210	59,008 ms	166.7 s
9,191	209	21,811	$0.124171	12,311 ms	13.6 s
9,052	117	18,176	$0.114546	5,162 ms	8.0 s
7,495	145	18,176	$0.100376	2,804 ms	5.8 s
1,168	288	26,368	$0.052448	3,100 ms	8.4 s
4,560	212	25,344	$0.081544	4,497 ms	10.3 s
7,745	445	27,392	$0.127092	4,878 ms	13.1 s
26,071	533	30,413	$0.317773	5,171 ms	21.2 s
17,715	566	21,811	$0.227261	15,572 ms	18.9 s
5,980	114	56,218	$0.121718	6,652 ms	8.0 s
29,524	566	36,352	$0.359892	21,591 ms	56.3 s
15,036	392	36,352	$0.206312	44,607 ms	79.7 s
67,772	852	36,352	$0.756672	3,578 ms	48.1 s
109,162	1,324	0	$1.157820	14,207 ms	32.8 s
50,004	578	15,872	$0.544812	1,781 ms	69.3 s
67,772	754	36,352	$0.751772	15,071 ms	88.4 s
1,475	124	61,133	$0.082083	5,643 ms	7.4 s
18,189	472	34,560	$0.240050	2,954 ms	11.6 s
15,054	36	62,362	$0.214702	7,545 ms	8.3 s
700	428	50,688	$0.079088	1,401 ms	102.7 s
12,502	782	51,968	$0.216088	2,060 ms	17.1 s
94,332	896	36,352	$1.024472	5,525 ms	19.3 s
23,676	1,020	128,512	$0.416272	3,388 ms	15.2 s
25,020	1,436	151,040	$0.473040	2,370 ms	36.2 s
21,678	2,060	175,616	$0.495396	2,580 ms	29.0 s
94,895	183	3,840	$0.961940	4,616 ms	8.2 s
80,766	67	18,176	$0.829186	2,545 ms	3.9 s
162,988	1,238	36,352	$1.728132	2,527 ms	92.4 s
35,414	414	64,256	$0.439096	5,339 ms	59.1 s
6,052	430	196,096	$0.278116	8,901 ms	16.2 s
1,233	67	99,072	$0.114752	5,418 ms	7.0 s
2,778	1,332	200,192	$0.294572	3,046 ms	18.9 s
1,370	1,364	100,096	$0.181996	2,473 ms	27.4 s
101,868	252	21,811	$1.053091	19,387 ms	21.0 s
4,634	426	118,886	$0.186526	7,783 ms	14.2 s
4,664	399	101,120	$0.167710	2,613 ms	10.0 s
991	550	105,216	$0.142626	5,891 ms	17.1 s
1,612	348	105,216	$0.138736	2,571 ms	9.3 s
963	114	106,240	$0.121570	2,496 ms	4.8 s
1,162	282	106,240	$0.131960	2,341 ms	7.5 s
447	256	107,264	$0.124534	2,456 ms	7.3 s
727	247	107,264	$0.126884	7,821 ms	12.5 s
1,499	248	107,264	$0.134654	3,877 ms	8.7 s
946	155	108,288	$0.125498	2,866 ms	5.9 s
1,266	198	108,288	$0.130848	6,718 ms	10.6 s
28,786	698	202,240	$0.525000	4,104 ms	14.6 s
3,198	416	228,864	$0.281644	3,183 ms	14.0 s
5,354	344	230,912	$0.301652	3,920 ms	11.8 s
220,278	642	7,680	$2.242560	3,788 ms	109.4 s
118,111	328	21,811	$1.219321	27,150 ms	30.2 s
7,290	144	109,312	$0.189412	5,676 ms	8.8 s
1,718	232	235,008	$0.263788	14,974 ms	25.5 s
17,756	235	122,573	$0.311883	14,473 ms	17.6 s
1,166	729	139,776	$0.187886	28,811 ms	46.1 s
18,210	631	122,573	$0.336223	4,601 ms	14.8 s
33,542	408	79,360	$0.435180	54,608 ms	63.5 s
3,174	847	139,776	$0.213866	8,093 ms	20.9 s
201,632	1,752	36,352	$2.140272	19,789 ms	44.4 s
1,591	517	142,234	$0.183994	4,494 ms	12.1 s
909	948	143,462	$0.199952	5,848 ms	21.5 s
1,886	336	143,462	$0.179122	3,927 ms	11.4 s
4,198	173	116,480	$0.167110	7,908 ms	11.3 s
1,126	173	119,552	$0.139462	46,517 ms	50.0 s
103,180	369	18,176	$1.068426	7,265 ms	14.4 s
34,172	224	80,896	$0.433816	62,794 ms	68.5 s
931	374	114,688	$0.142698	25,239 ms	32.5 s
10,522	1,262	232,960	$0.401280	23,000 ms	37.9 s
1,068	917	145,920	$0.202450	11,128 ms	24.7 s
117,804	649	29,184	$1.239674	17,935 ms	58.5 s
8,428	1,273	145,920	$0.293850	19,057 ms	38.7 s
1,055	938	153,293	$0.210743	5,284 ms	19.8 s
11,594	2,366	243,200	$0.477440	2,907 ms	60.9 s
2,022	516	153,293	$0.199313	32,007 ms	39.8 s
131,482	516	21,811	$1.362431	5,651 ms	14.5 s
1,338	114	154,522	$0.173602	4,887 ms	6.8 s
1,480	402	154,522	$0.189422	5,866 ms	12.2 s
12,969	432	142,234	$0.293524	9,275 ms	15.7 s
18,928	460	139,776	$0.352056	5,858 ms	15.8 s
5,217	685	155,750	$0.242170	10,136 ms	20.6 s
13,647	499	160,666	$0.322086	14,369 ms	21.9 s
3,829	931	172,954	$0.257794	5,214 ms	24.6 s
3,991	895	176,640	$0.261300	6,107 ms	28.6 s
8,246	737	180,326	$0.299636	11,715 ms	23.6 s
15,655	1,822	187,699	$0.435349	3,993 ms	33.9 s
2,760	197	202,445	$0.239895	4,753 ms	8.1 s
1,318	1,003	204,902	$0.268232	16,853 ms	23.1 s
1,318	574	204,902	$0.246782	9,276 ms	19.3 s
1,920	263	204,902	$0.237252	18,498 ms	18.5 s
691	370	206,131	$0.231541	7,989 ms	13.4 s
1,090	376	206,131	$0.235831	4,891 ms	11.1 s
1,494	318	206,131	$0.236971	6,446 ms	11.6 s
49,632	486	119,552	$0.640172	6,156 ms	15.4 s
835	307	170,752	$0.194452	8,110 ms	14.2 s
3,600	599	207,360	$0.273310	26,748 ms	36.1 s
370,478	328	3,584	$7.441328	24,880 ms	100.6 s
479	132	171,776	$0.183166	4,194 ms	6.9 s
187,851	1,662	21,811	$1.983421	5,267 ms	30.5 s
4,899	918	209,818	$0.304708	36,907 ms	51.8 s
67,340	455	143,462	$0.839612	5,556 ms	13.0 s
1,165	276	170,752	$0.196202	5,044 ms	134.3 s
2,837	378	213,504	$0.260774	5,493 ms	11.6 s
786	193	215,962	$0.233472	16,047 ms	19.2 s
632	426	359,936	$0.764462	7,627 ms	76.3 s
4,600	285	171,776	$0.232026	5,780 ms	11.2 s
1,477	352	215,962	$0.248332	5,521 ms	11.6 s
73,121	699	143,462	$0.909622	13,017 ms	26.2 s
249	184	217,190	$0.228880	53,471 ms	57.4 s
1,310	296	359,936	$0.768272	3,561 ms	125.6 s
140,057	188	77,107	$1.487077	45,140 ms	48.0 s
94,638	196	122,573	$1.078753	15,196 ms	17.8 s
195,353	175	21,811	$1.984091	30,923 ms	34.1 s
5,160	290	217,190	$0.283290	6,272 ms	10.7 s
883	166	222,106	$0.239236	5,745 ms	8.8 s
1,310	494	359,936	$0.783122	3,510 ms	244.6 s
201,366	659	21,811	$2.068421	4,823 ms	15.8 s
11,156	1,860	215,962	$0.420522	9,643 ms	44.5 s
11,485	121	222,106	$0.343006	9,608 ms	12.0 s
76,675	1,153	152,064	$0.976464	6,533 ms	25.9 s
373,552	1,858	7,680	$7.625750	35,674 ms	54.6 s
71,330	410	158,208	$0.892008	10,742 ms	16.1 s
16,172	216	175,872	$0.348392	23,713 ms	28.0 s
425,284	860	3,584	$8.577348	4,298 ms	68.6 s
812	187	191,232	$0.208702	23,432 ms	27.2 s
812	210	191,232	$0.209852	3,799 ms	7.9 s
1,045	291	191,232	$0.216232	4,509 ms	10.0 s
664	1,284	392,704	$0.894988	3,988 ms	62.8 s
3,691	252	191,232	$0.240742	5,009 ms	10.3 s
191,359	283	3,840	$1.931580	4,152 ms	9.6 s
7,768	1,018	376,320	$0.984350	3,732 ms	120.5 s
1,959	136	194,304	$0.220694	3,792 ms	6.6 s
178,244	115	18,176	$1.806366	3,921 ms	6.5 s
98,503	209	98,048	$1.093528	4,763 ms	9.0 s
432	168	196,352	$0.209072	2,902 ms	6.6 s
932	106	196,352	$0.210972	5,370 ms	7.7 s
3,107	356	194,304	$0.243174	3,384 ms	10.1 s
1,424	1,861	196,352	$0.303642	4,381 ms	38.6 s
2,285	345	197,376	$0.237476	4,439 ms	11.0 s
606	341	199,424	$0.222534	3,602 ms	10.8 s
1,260	197	199,424	$0.221874	6,468 ms	10.6 s
773	146	200,448	$0.215478	3,680 ms	6.7 s
975	504	200,448	$0.235398	8,023 ms	18.5 s
10,780	396	200,448	$0.328048	4,057 ms	11.0 s
877	2,512	216,832	$0.351202	8,788 ms	54.2 s
3,714	160	216,832	$0.261972	4,286 ms	11.0 s
36,614	126	235,622	$1.212974	53,838 ms	56.8 s
978	778	271,258	$0.620426	14,366 ms	26.1 s
245,417	106	21,811	$2.481281	11,301 ms	13.3 s
978	1,790	271,258	$0.696326	28,034 ms	59.0 s
51,400	468	215,962	$0.753362	8,960 ms	15.9 s
69,399	1,209	149,504	$0.903944	73,330 ms	99.4 s
113,324	182	154,522	$1.296862	6,942 ms	10.2 s
1,715	1,368	266,342	$0.351892	9,781 ms	30.4 s
53,492	791	215,962	$0.790432	10,366 ms	22.8 s
5,043	126	271,258	$0.652826	20,282 ms	22.5 s
3,454	141	221,952	$0.263542	4,449 ms	7.5 s
871	642	225,024	$0.265834	5,601 ms	17.9 s
15,850	94	208,000	$0.371200	30,963 ms	67.5 s
208,385	639	18,176	$2.133976	7,429 ms	19.3 s
31,896	207	195,328	$0.524638	9,270 ms	13.6 s
83,612	276	140,928	$0.990848	16,190 ms	54.2 s
34,250	88	195,328	$0.542228	4,135 ms	6.0 s
3,236	83	227,072	$0.263582	4,123 ms	6.1 s
86,196	234	365,568	$2.472606	13,980 ms	60.9 s
7,368	235	274,944	$0.714873	13,205 ms	17.7 s
1,058	356	225,536	$0.253916	13,119 ms	63.0 s
1,800	111	229,120	$0.252670	4,734 ms	7.1 s
104,410	282	359,936	$2.829222	4,902 ms	8.1 s
1,005	103	231,168	$0.246368	23,731 ms	25.9 s
2,194	59	230,144	$0.255034	4,803 ms	6.2 s
1,330	242	231,168	$0.256568	5,299 ms	9.7 s
813	260	232,192	$0.253322	7,239 ms	11.9 s
813	115	232,192	$0.246072	25,704 ms	28.3 s
1,533	72	230,144	$0.249074	4,665 ms	96.4 s
1,583	197	232,192	$0.257872	4,839 ms	8.4 s
215,825	197	18,176	$2.186276	6,651 ms	11.5 s
54,615	204	233,165	$1.573930	6,189 ms	9.9 s
781	261	287,232	$0.609659	9,708 ms	14.2 s
10,044	154	225,024	$0.333164	26,710 ms	29.9 s
217,227	74	18,176	$2.194146	12,116 ms	14.2 s
1,222	109	287,232	$0.607079	28,434 ms	29.4 s
7,486	469	281,088	$0.747071	7,809 ms	15.7 s
1,840	271	287,232	$0.631589	7,659 ms	12.6 s
911	230	288,461	$0.612392	8,600 ms	10.6 s
1,321	74	288,461	$0.608892	9,950 ms	10.0 s
1,415	372	288,461	$0.633122	10,806 ms	15.7 s
138,614	205	98,048	$1.494438	25,213 ms	29.1 s
574	560	289,690	$0.632860	12,537 ms	21.3 s
580	166	236,288	$0.250388	4,394 ms	7.8 s
1,806	350	235,264	$0.270824	6,450 ms	13.3 s
6,984	371	236,288	$0.324678	5,238 ms	12.4 s
1,235	80	242,432	$0.258782	6,481 ms	8.6 s
315	187	243,456	$0.255956	4,166 ms	7.9 s
1,244	150	243,456	$0.263396	6,346 ms	9.4 s
394	86	244,480	$0.252720	4,765 ms	6.6 s
226,808	196	18,176	$2.296056	9,282 ms	17.5 s
236,918	170	18,176	$2.395856	3,927 ms	17.2 s
237,968	146	18,176	$2.405156	5,266 ms	11.9 s
56,799	412	403,104	$1.973088	3,045 ms	42.1 s
31,109	241	7,488	$0.330628	2,971 ms	41.0 s
104,441	125	18,432	$1.069092	11,163 ms	11.2 s
8,927	401	122,752	$0.232072	18,832 ms	18.9 s
785	251	131,456	$0.151856	26,301 ms	33.9 s
1,257	266	132,096	$0.157966	13,285 ms	13.3 s
18,365	78	18,176	$0.205726	34,560 ms	34.6 s
9,878	164	36,352	$0.143332	9,800 ms	9.8 s
587	75	46,080	$0.055700	11,619 ms	11.6 s
1,178	1,834	133,120	$0.236600	23,492 ms	60.8 s
2,012	2,289	134,144	$0.268714	15,892 ms	75.1 s
2,533	160	135,936	$0.169266	11,703 ms	11.7 s
2,788	588	138,240	$0.195520	25,622 ms	25.6 s
2,067	32	140,800	$0.163070	9,223 ms	9.3 s
337	6,415	46,464	$0.370584	19,744 ms	196.3 s
6,648	77	46,592	$0.116922	5,767 ms	5.8 s
218	1,363	142,720	$0.213050	17,271 ms	48.3 s
582	211	53,120	$0.069490	11,075 ms	11.1 s
1,605	176	142,720	$0.167570	10,089 ms	10.1 s
500	196	53,504	$0.068304	10,601 ms	10.6 s
471	291	144,128	$0.163388	13,873 ms	13.9 s
381	170	53,888	$0.066198	8,706 ms	8.7 s
6,375	95	144,384	$0.212884	10,391 ms	10.4 s
787	196	54,144	$0.071814	9,771 ms	9.8 s
476	89	150,528	$0.159738	8,142 ms	8.2 s
775	455	54,784	$0.085284	17,877 ms	17.9 s
2,327	220	150,784	$0.185054	13,447 ms	13.5 s
1,176	88	55,424	$0.071584	7,177 ms	7.2 s
269	91	56,448	$0.063688	6,446 ms	6.5 s
383	214	152,960	$0.167490	13,496 ms	13.5 s
294	84	56,576	$0.063716	10,564 ms	10.6 s
450	411	153,216	$0.178266	22,136 ms	22.2 s
685	103	153,472	$0.165472	9,141 ms	9.2 s
273	300	56,704	$0.074434	12,475 ms	12.5 s
159	5	3,968	$0.005808	0 ms	3.8 s
159	5	3,968	$0.005808	2,891 ms	2.9 s
52,032	8,305	3,968	$0.939538	0 ms	264.2 s
192	7,586	55,808	$0.437028	74,110 ms	301.9 s
7,449	2,451	0	$0.197040	0 ms	82.7 s
8,799	3,469	0	$0.261440	0 ms	134.4 s
159	5	3,968	$0.005808	2,156 ms	2.2 s
223	3,903	8,576	$0.205956	37,688 ms	119.1 s
6,419	1,892	0	$0.158790	21,092 ms	62.2 s
571	1,389	3,840	$0.079000	4,758 ms	50.7 s
177	2,695	3,968	$0.140488	7,634 ms	112.5 s
154	6	3,968	$0.005808	0 ms	2.2 s
154	6	3,968	$0.005808	2,037 ms	2.0 s
154	6	3,968	$0.005808	1,950 ms	2.0 s
170	2,659	3,968	$0.138618	0 ms	109.3 s
258	4,299	3,968	$0.221498	11,863 ms	82.1 s
0	0	0	$0.000000	33,394 ms	128.9 s
0	0	0	$0.000000	10,530 ms	69.5 s
0	0	0	$0.000000	19,533 ms	131.1 s
393	10,632	4,224	$0.539754	2,389 ms	233.3 s
701	6,633	3,571	$0.342231	19,050 ms	271.0 s
701	5,735	3,571	$0.297331	10,509 ms	233.6 s
156	5	3,968	$0.005778	7,753 ms	7.8 s
14,982	391	0	$0.169370	39,448 ms	47.5 s
15,345	97	0	$0.158300	13,019 ms	13.0 s
19,346	391	0	$0.213010	14,207 ms	19.5 s
36,508	494	13,056	$0.402836	3,270 ms	28.6 s
46,432	266	3,968	$0.481588	5,075 ms	13.8 s
36,868	148	13,952	$0.390032	5,968 ms	10.4 s
587	185	50,688	$0.065808	7,372 ms	12.8 s
50,444	361	3,840	$0.526330	21,303 ms	44.0 s
50,928	141	3,968	$0.520298	7,510 ms	11.8 s
387	289	54,784	$0.073104	4,804 ms	15.5 s
52,871	238	3,968	$0.544578	4,710 ms	18.6 s
53,012	211	3,968	$0.544638	20,862 ms	24.6 s
53,346	290	3,968	$0.551928	9,538 ms	18.7 s
569	94	57,216	$0.067606	9,019 ms	11.8 s
1,076	224	57,728	$0.079688	13,356 ms	21.2 s
55,104	291	3,968	$0.569558	12,223 ms	18.0 s
506	71	59,008	$0.067618	9,384 ms	11.5 s
55,679	117	3,968	$0.566608	13,331 ms	16.1 s
23,544	84	40,064	$0.279704	12,744 ms	14.6 s
59,799	1,027	3,968	$0.653308	16,237 ms	47.3 s
1,968	332	63,744	$0.100024	14,757 ms	24.9 s
20,852	187	49,408	$0.267278	8,346 ms	18.1 s
4,929	218	65,664	$0.125854	13,494 ms	20.6 s
17,647	703	53,504	$0.265124	12,958 ms	49.5 s
21,952	323	49,408	$0.285078	9,059 ms	27.4 s
2,370	202	70,912	$0.104712	25,235 ms	33.4 s
5,833	2,045	72,960	$0.233540	6,556 ms	129.1 s
9,474	364	78,080	$0.191020	10,532 ms	26.8 s
881	252	87,296	$0.108706	6,124 ms	16.0 s
1,243	2,181	87,296	$0.208776	5,593 ms	130.8 s
16,269	2,476	70,912	$0.357402	31,937 ms	147.8 s
328	470	89,344	$0.116124	25,457 ms	44.6 s
86,342	177	3,840	$0.876110	35,128 ms	42.6 s
85,154	339	3,840	$0.872330	15,862 ms	28.8 s
85,283	339	3,968	$0.873748	43,224 ms	52.8 s
67,957	78	21,760	$0.705230	52,120 ms	55.3 s
241	301	89,600	$0.107060	11,918 ms	20.7 s
670	91	89,728	$0.100978	7,707 ms	10.5 s
132	245	90,368	$0.103938	7,414 ms	15.3 s
71,506	2,102	21,248	$0.841408	10,663 ms	128.5 s
90,604	75	3,968	$0.913758	13,264 ms	15.5 s
203	301	94,464	$0.111544	16,515 ms	25.7 s
2,359	1,998	94,592	$0.218082	5,238 ms	65.4 s
2,162	204	96,896	$0.128716	12,493 ms	18.4 s
438	103	98,944	$0.108474	7,338 ms	10.4 s
2,288	205	99,328	$0.132458	7,461 ms	13.8 s
407	512	101,504	$0.131174	6,690 ms	22.1 s
88,094	179	14,080	$0.903970	5,282 ms	12.5 s
802	257	101,888	$0.122758	6,123 ms	14.1 s
589	233	102,656	$0.120196	5,261 ms	12.2 s
420	112	103,168	$0.112968	5,587 ms	9.2 s
2,287	1,509	101,632	$0.199952	5,879 ms	64.0 s
2,138	758	103,552	$0.162832	7,726 ms	30.8 s
985	198	105,600	$0.125350	4,753 ms	11.1 s
377	533	106,496	$0.136916	6,096 ms	22.2 s
3,520	113	103,680	$0.144530	7,177 ms	11.0 s
39,084	959	3,840	$0.442630	6,393 ms	14.7 s
5,004	1,997	42,752	$0.192642	4,948 ms	23.1 s
4,431	1,098	45,354	$0.144564	4,500 ms	14.4 s
44,956	1,436	3,840	$0.525200	14,347 ms	88.4 s
1,860	143	48,412	$0.074162	27,105 ms	41.2 s
2,077	494	48,406	$0.093876	24,042 ms	42.4 s
2,611	487	48,390	$0.098850	16,064 ms	48.5 s
3,137	214	48,375	$0.090445	15,059 ms	24.9 s
4,951	934	49,316	$0.145526	15,857 ms	64.1 s
3,138	468	52,351	$0.107131	24,072 ms	51.3 s
2,620	173	53,361	$0.088211	22,814 ms	34.2 s
3,648	221	53,331	$0.100861	36,749 ms	50.3 s
1,897	222	55,370	$0.085440	48,329 ms	59.3 s
2,141	162	55,363	$0.084873	48,586 ms	57.2 s
2,682	242	55,347	$0.094267	34,297 ms	46.9 s
7,154	100	57,088	$0.133628	20,285 ms	28.6 s
7,569	82	61,170	$0.140960	58,595 ms	65.0 s
2,616	67	66,285	$0.095795	19,401 ms	27.5 s
2,767	57	66,281	$0.096801	17,737 ms	27.0 s
2,909	100	66,276	$0.100366	26,626 ms	33.4 s
3,094	85	66,271	$0.101461	16,467 ms	24.8 s
3,264	112	66,266	$0.104506	28,682 ms	34.3 s
2,390	58	67,286	$0.094086	20,841 ms	26.2 s
2,532	77	67,282	$0.096452	29,077 ms	33.7 s
2,705	74	64,294	$0.095044	44,733 ms	47.6 s
2,864	80	64,289	$0.096929	15,969 ms	18.9 s
3,028	77	64,285	$0.098415	24,460 ms	27.4 s
3,214	156	64,279	$0.104219	14,421 ms	20.6 s
2,374	117	65,298	$0.094888	14,339 ms	18.0 s
2,797	396	65,286	$0.113056	40,064 ms	57.9 s
3,231	135	65,273	$0.104333	15,423 ms	20.2 s
2,409	254	66,291	$0.103081	14,093 ms	24.0 s
2,871	484	66,278	$0.119188	34,940 ms	54.7 s
3,431	113	66,261	$0.106221	18,703 ms	22.9 s
2,579	272	67,280	$0.106670	25,983 ms	33.4 s
2,920	162	67,270	$0.104570	15,097 ms	20.6 s
3,148	181	67,264	$0.107794	13,928 ms	20.8 s
3,438	55	67,255	$0.104385	17,830 ms	19.1 s
2,670	538	68,272	$0.121872	59,786 ms	80.8 s
3,479	201	68,248	$0.113088	15,652 ms	22.7 s
2,785	234	69,263	$0.108813	14,926 ms	24.7 s
2,323	406	71,264	$0.114794	92,917 ms	107.7 s
12,322	1,857	73,472	$0.289542	15,084 ms	100.8 s
7,207	3,530	82,058	$0.330628	14,928 ms	170.6 s
73,124	181	14,720	$0.755010	6,420 ms	12.9 s
3,035	338	87,680	$0.134930	4,975 ms	19.2 s
86,940	659	3,968	$0.906318	27,937 ms	51.3 s
77,308	85	14,080	$0.791410	18,360 ms	21.9 s
87,651	103	3,840	$0.885500	17,878 ms	22.6 s
87,701	235	3,968	$0.892728	14,809 ms	22.5 s
440	489	91,520	$0.120370	4,162 ms	18.7 s
856	100	91,904	$0.105464	33,827 ms	37.3 s
2,366	161	90,752	$0.122462	3,681 ms	9.5 s
1,360	835	91,904	$0.147254	47,346 ms	76.3 s
85,080	2,314	14,080	$0.980580	36,634 ms	158.7 s
3,448	696	98,048	$0.167328	34,148 ms	69.8 s
96,441	13	3,968	$0.969028	7,427 ms	7.7 s
96,441	488	3,968	$0.992778	6,658 ms	27.8 s
96,774	172	3,968	$0.980308	5,395 ms	11.5 s
87,193	420	14,720	$0.907650	5,048 ms	18.5 s
632	89	101,760	$0.112530	9,242 ms	11.3 s
98,484	452	3,968	$1.011408	15,652 ms	27.3 s
744	111	102,272	$0.115262	6,190 ms	8.5 s
731	137	102,784	$0.116944	4,804 ms	10.4 s
89,131	438	14,720	$0.927930	6,101 ms	24.8 s
100,131	242	3,968	$1.017378	15,506 ms	23.1 s
8,329	226	98,048	$0.192638	28,073 ms	37.0 s
3,622	107	103,936	$0.145506	4,891 ms	8.2 s
291	134	107,392	$0.117002	4,312 ms	7.6 s
3,780	250	107,520	$0.157820	4,840 ms	12.4 s
600	2,989	111,104	$0.266554	5,289 ms	107.4 s
3,903	144	111,488	$0.157718	10,176 ms	15.1 s
1,600	1,378	115,200	$0.200100	4,403 ms	51.5 s
1,594	294	116,608	$0.147248	4,584 ms	13.8 s
115,147	352	3,968	$1.173038	6,532 ms	23.0 s
121,417	1,062	3,968	$1.271238	4,923 ms	40.3 s
122,763	1,403	3,968	$1.301748	7,857 ms	41.3 s
2,993	187	126,592	$0.165872	7,869 ms	13.1 s
22,926	40	106,240	$0.337500	12,679 ms	14.2 s
512	265	128,768	$0.147138	12,354 ms	20.8 s
2,279	133	129,408	$0.158848	6,847 ms	10.0 s
727	1,306	131,456	$0.204026	5,583 ms	39.4 s
129,170	125	3,968	$1.301918	17,629 ms	21.7 s
129,134	349	3,968	$1.312758	7,506 ms	22.7 s
130,100	167	4,096	$1.313446	6,994 ms	10.8 s
19,090	2,019	118,666	$0.410516	15,411 ms	64.8 s
19,438	1,850	121,742	$0.408622	19,029 ms	90.7 s
17,985	354	125,069	$0.322619	7,425 ms	17.8 s
138,569	45	0	$1.387940	4,798 ms	16.5 s
11	11	0	$0.000660	1,360 ms	3.4 s
19	329	0	$0.016640	1,301 ms	15.6 s
56	29	0	$0.002010	1,287 ms	2.9 s
199	44	0	$0.004190	1,397 ms	8.7 s
91	46	0	$0.003210	1,351 ms	15.4 s
596	304	0	$0.021160	1,316 ms	7.2 s
192	979	509	$0.051379	1,406 ms	15.7 s
837	224	0	$0.019570	1,581 ms	6.3 s
563	5	3,840	$0.009720	0 ms	6.5 s
5,620	26	22,272	$0.079772	5,474 ms	6.1 s
25,369	31	3,840	$0.259080	115,333 ms	115.4 s
767	5	3,433	$0.011353	0 ms	3.4 s
4,640	10	0	$0.046900	3,309 ms	3.9 s
7,660	5	0	$0.076850	2,618 ms	2.6 s
4,640	10	0	$0.046900	1,923 ms	2.5 s
7,660	5	0	$0.076850	1,795 ms	1.9 s
36,453	534	0	$0.391230	4,870 ms	32.3 s
36,957	69	0	$0.373020	2,219 ms	24.4 s
1,512	5	6,148	$0.021518	2,039 ms	2.3 s
41,497	367	0	$0.433320	2,192 ms	190.9 s
4,700	15	0	$0.047750	3,510 ms	3.5 s
7,720	401	0	$0.097250	3,015 ms	12.0 s
1,709	90	6,448	$0.028038	5,371 ms	7.1 s
9,985	485	34,752	$0.158852	2,384 ms	53.8 s
8,408	216	37,363	$0.132243	2,404 ms	27.0 s
17,625	157	29,431	$0.213531	2,734 ms	33.8 s
10,529	116	36,804	$0.147894	2,396 ms	32.5 s
9,844	200	37,623	$0.146063	2,617 ms	172.7 s
9,995	198	38,233	$0.148083	2,678 ms	128.1 s
10,350	159	37,623	$0.149073	2,678 ms	47.7 s
48,185	410	0	$0.502350	3,010 ms	81.4 s
10,241	83	39,490	$0.146050	2,601 ms	8.1 s
9,029	422	41,071	$0.152461	2,763 ms	80.7 s
20,237	307	43,083	$0.260803	3,126 ms	92.7 s
12,700	577	51,242	$0.207092	2,964 ms	86.3 s
25,761	119	37,623	$0.301183	11,155 ms	361.8 s
13,275	452	51,315	$0.206665	3,180 ms	137.2 s
13,479	577	51,111	$0.214751	3,340 ms	130.4 s
64,342	1,025	0	$0.694670	3,276 ms	40.4 s
12,363	136	53,875	$0.184305	3,247 ms	99.8 s
13,802	557	53,109	$0.218979	3,272 ms	86.0 s
12,713	170	54,844	$0.190474	3,775 ms	73.1 s
13,876	138	54,279	$0.199939	3,573 ms	92.5 s
14,248	315	54,109	$0.212339	3,222 ms	97.6 s
4,640	9	0	$0.046850	4,725 ms	4.9 s
7,678	5	0	$0.077030	2,875 ms	2.9 s
7,672	5	0	$0.076970	3,092 ms	3.4 s
4,700	15	0	$0.047750	2,739 ms	3.0 s
7,732	387	0	$0.096670	5,222 ms	14.1 s
1,667	99	6,481	$0.028101	3,857 ms	6.5 s
355	351	3,968	$0.025068	0 ms	11.8 s
155	1,175	0	$0.060300	0 ms	20.8 s
129	144	0	$0.008490	0 ms	50.4 s
836	423	3,392	$0.032902	0 ms	11.7 s
804	115	3,492	$0.017282	0 ms	3.9 s
166	326	0	$0.017960	0 ms	50.3 s
873	246	3,419	$0.024449	0 ms	7.5 s
878	326	3,445	$0.028525	0 ms	10.2 s
828	993	3,518	$0.061448	0 ms	27.7 s
813	138	3,507	$0.018537	0 ms	6.5 s
796	434	3,509	$0.033169	0 ms	12.8 s
881	115	3,492	$0.018052	0 ms	6.6 s
389	249	3,968	$0.020308	0 ms	9.2 s
868	304	3,463	$0.027343	0 ms	12.5 s
870	403	3,508	$0.032358	0 ms	11.6 s
361	466	3,968	$0.030878	0 ms	15.6 s
179	787	0	$0.041140	0 ms	21.0 s
168	653	0	$0.034330	0 ms	16.1 s
159	505	0	$0.026840	0 ms	11.6 s
199	760	0	$0.039990	0 ms	35.5 s
154	382	4,224	$0.024864	0 ms	11.1 s
888	542	3,441	$0.039421	0 ms	18.8 s
179	900	0	$0.046790	0 ms	23.5 s
168	569	0	$0.030130	0 ms	15.3 s
159	539	0	$0.028540	0 ms	18.0 s
199	694	0	$0.036690	0 ms	35.2 s
7,053	109	3,968	$0.079948	0 ms	7.6 s
25,028	827	3,712	$0.295342	7,396 ms	31.7 s
1,318	2,334	28,544	$0.158424	8,051 ms	75.9 s
30,813	207	3,712	$0.322192	3,751 ms	8.8 s
7,101	728	27,654	$0.135064	10,681 ms	21.1 s
6,483	182	29,061	$0.102991	5,693 ms	7.8 s
8,027	1,148	26,496	$0.164166	16,388 ms	46.6 s
6,814	1,308	27,716	$0.161256	9,473 ms	43.7 s
7,120	1,659	28,629	$0.182779	9,399 ms	71.1 s
1,511	4,716	35,584	$0.286494	9,364 ms	140.5 s
7,331	3,910	31,013	$0.299823	12,464 ms	123.5 s
7,607	3,585	32,142	$0.287462	9,360 ms	99.8 s
216	4,209	39,808	$0.252418	3,924 ms	113.5 s
8,606	4,234	35,672	$0.333432	12,145 ms	123.6 s
8,989	637	39,610	$0.161350	8,754 ms	22.6 s
7,043	62	28,762	$0.102292	3,261 ms	4.7 s
10,153	340	39,096	$0.157626	6,813 ms	11.5 s
9,364	180	40,316	$0.142956	11,434 ms	11.8 s
7,577	924	35,584	$0.157554	11,528 ms	33.2 s
9,087	222	40,785	$0.142755	9,256 ms	11.7 s
46,719	2,304	3,712	$0.586102	9,990 ms	65.0 s
10,476	218	46,559	$0.162219	6,093 ms	9.0 s
472	1,035	57,868	$0.114338	12,008 ms	31.6 s
24,333	96	0	$0.248130	2,310 ms	37.6 s
6,869	280	8,078	$0.090768	1,635 ms	15.1 s
616	256	14,963	$0.033923	1,672 ms	17.3 s
19,748	1,306	0	$0.262780	1,652 ms	37.6 s
9,888	1,473	17,921	$0.190451	2,013 ms	38.2 s
13,710	2,265	19,545	$0.269895	2,118 ms	56.3 s
8,107	3,373	29,635	$0.279355	2,254 ms	71.8 s
6,482	2,713	39,213	$0.239683	2,637 ms	65.0 s
3,168	3,550	46,321	$0.255501	2,428 ms	79.1 s
3,386	614	50,215	$0.114775	2,598 ms	27.9 s
695	2,781	53,638	$0.199638	2,802 ms	86.6 s
5,035	1,690	43,075	$0.177925	3,088 ms	48.4 s
49,354	1,558	0	$0.571440	3,277 ms	49.2 s
4,518	608	49,090	$0.124670	3,529 ms	28.8 s
6,261	3,301	55,670	$0.283330	3,336 ms	72.1 s
52,708	8,905	13,177	$0.985507	3,174 ms	176.8 s
7,425	2,473	67,609	$0.265509	3,455 ms	59.3 s
49,224	1,620	14,681	$0.587921	4,225 ms	48.8 s
52,356	1,209	13,089	$0.597099	3,969 ms	36.4 s
1,932	2,455	65,724	$0.207794	3,752 ms	61.1 s
192	2,277	67,464	$0.183234	4,072 ms	72.7 s
68,056	5,317	17,013	$0.963423	3,650 ms	113.2 s
2,776	2,731	83,855	$0.248165	3,994 ms	65.0 s
1,986	3,990	63,705	$0.283065	3,790 ms	91.2 s
4,032	1,032	84,169	$0.176089	3,877 ms	34.8 s
1,956	3,218	67,906	$0.248366	4,221 ms	70.8 s
1,750	3,815	88,462	$0.296712	4,611 ms	85.3 s
4,129	367	65,497	$0.125137	4,208 ms	25.5 s
1,023	1,819	69,465	$0.170645	4,900 ms	50.1 s
52,966	67	14,681	$0.547691	4,616 ms	29.1 s
4,973	1,254	91,316	$0.203746	4,841 ms	38.0 s
3,165	5,669	70,512	$0.385612	4,375 ms	118.8 s
4,172	2,264	70,361	$0.225281	4,887 ms	58.3 s
3,013	1,270	74,329	$0.167959	5,078 ms	38.6 s
19,749	710	3,712	$0.236702	1,638 ms	27.7 s
80,432	9,989	3,712	$1.307482	2,042 ms	433.0 s
74,636	10,035	23,385	$1.271495	2,921 ms	467.1 s
56,214	4,490	3,712	$0.790352	2,608 ms	114.1 s
51,671	7,595	21,977	$0.918437	2,289 ms	333.4 s

552 calls · 13,547,007 input tokens · 422,710 output · 45,914,517 cache-read · $225.19 at list price. Regenerated automatically — if the numbers change, this table changes.

Caching saved more than the bill

Of 59,461,524 input tokens in total, 45,914,517 arrived as cache reads — 77% of everything sent. Cache reads bill at $1.00 per 1M against $10.00 for fresh input, so:

45,914,517 cache-read tokens
  at the input rate  $10.00 / 1M   =   $459.15
  at the cache rate  $ 1.00 / 1M   =   $45.91
                                       ──────────
  saved                                $413.23

total list-price cost of all 552 calls:  $225.19

The saving is larger than the entire invoice. That is not a quirk of our workload — it is what happens to any agent loop that resends the same context, which is precisely what this model is built for. If you are estimating a budget from the headline per-token price, you will overestimate by several times.

The corollary matters more: anything that invalidates the cache costs you the full input rate again. A timestamp near the top of a prompt, a request ID, a reordered tool list — each of those turns a $1.00 read into a $10.00 write-and-read.

The 272,000-token cliff

Requests above 272,000 input tokens are repriced at a higher rate for the entire call, not only for the tokens past the threshold. A request at 271,000 tokens and one at 273,000 tokens are not 1% apart on the invoice.

This is the single most surprising line item people hit with this model. If your pipeline occasionally stuffs a large corpus into one request, you will see bills that look inexplicable until you find the crossing. Cap the context assembly, or split the work into two calls that each stay under the line.

Measured latency

From the same 552 calls. First-token time is what a user feels; total duration is what an agent loop waits on.

	First token	Total duration
Fastest	660 ms	1.9 s
Median	6,651.5 ms	20.9 s
Slowest	115,333 ms	467 s

The spread is wide because output length drives it. Short answers came back in a few seconds; the longest generation in this sample ran 467 seconds. Plan timeouts accordingly — a 30-second client timeout will cut off legitimate long generations.

When not to use it

This is the most expensive model in the GPT line, and there are common cases where it is the wrong pick:

• Classification, extraction, routing, tagging. High-volume, low-judgement steps. These dominate token counts in most pipelines and a small model handles them indistinguishably. Sending them here is the most expensive mistake available.
• Anything a user waits on synchronously. Median first token was 6,651.5 ms in our measurements. For an interactive UI, that is felt.
• Workloads with no context reuse. The economics above rest on cache reads. A pipeline that sends a fresh prompt every time pays the full input rate and loses the model's main cost advantage.
• Anything that needs non-default sampling. See the parameter notes below.

The split that holds up in practice is between deciding and doing. Route the high-volume routine steps to a cheap model, keep this one for the final reasoning step, and the blended cost lands much closer to the cheap model than the expensive one.

Calling it

The API is OpenAI-compatible. Point the base URL here and pass the model name — nothing else in your code changes.

from openai import OpenAI

client = OpenAI(
    api_key="YOUR_KEY",
    base_url="https://apiclan.us/v1",
)

resp = client.chat.completions.create(
    model="gpt-6-astra",
    messages=[{"role": "user", "content": "Hello"}],
)

What you pay here

Per 1M tokens	List price	APICLAN	You save
Input	$10.00	$2.00	80%
Output	$50.00	$10.00	80%

Cache reads bill at the same fraction of their own rate. Full arithmetic, a calculator and the sibling models are on the gpt-6-astra price page.

Questions people actually ask

Start using it

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Read the 30-second quickstart

Prices quoted on this page are regenerated automatically from live billing data. Third-party terms are quoted from that party's own published documentation.