Model intelligence

259 AI models

Capability (Epoch Capabilities Index and individual benchmarks from Epoch AI), API list prices and context windows (OpenRouter), release dates and open-weight status. Benchmarks are shown individually - never merged into one invented score.

Leads on ECI

GPT-6 Astra

ECI 166.6Epoch AI

Leads on GPQA Diamond

GPT-6 Astra

95.8%Epoch AI

Leads on SWE-bench Verified

Claude Opus 4.7

83.5%Epoch AI

Cheapest in ECI top 10

GPT-5.6 Sol

$2.00/M inputOpenRouter

Longest context

Grok 4.20 Multi-Agent

2M tokensOpenRouter

Best open-weight on ECI

Kimi K3

ECI 157.68Epoch AI

Epoch Capabilities Index by release date

Capability frontier

About ECI ↗

Source: Epoch AI (CC BY 4.0). ECI is Epoch's item-response model over many benchmarks; each model page shows its 90% confidence interval.

Blended $/1M tokens (3:1 input:output) vs ECI

Price vs capability

Only models with both an ECI score and an OpenRouter price. Normalisation: 75% input + 25% output price. Click a point to open the model.

Open weights Closed Reasoning Vision / image Audio Last 30 days Last 90 days Include retired

OpenAI 205 Anthropic 111 Alibaba (Qwen) 95 Google 88 Mistral AI 44 DeepSeek 42 Meta 37 xAI 27 Z.ai (Zhipu AI) 24 Moonshot AI 18 MiniMax 9 Microsoft 9 Tencent 8 Thinking Machines Lab 8 Amazon 8 ByteDance 7 AionLabs 6 NVIDIA 6

#	Model	ECI ↑	AA idx	GPQA◆	SWE-v	FrontierMath	AIME	HLE	Terminal	Context	In $/M	Out $/M	Weights	Released
1	Gemma 3 4B Google	116.0	—	23.2	—	—	7.5	—	—	131K	$0.050	$0.10	Open source	12 Mar 2025
2	Gemma 3 12B Google	123.5	3.8	39.5	—	—	16.7	—	—	131K	$0.050	$0.15	Open source	12 Mar 2025
3	GPT-4o-mini OpenAI	126.6	—	37.7	—	0.7	6.9	—	—	128K	$0.15	$0.60	Closed	18 Jul 2024
4	GPT-4.1 Nano OpenAI	129.6	—	48.9	—	—	28.9	—	—	1.05M	$0.10	$0.40	Closed	14 Apr 2025
5	Llama 4 Scout Meta	129.6	—	51.8	—	—	7.8	—	—	1.31M	$0.10	$0.30	Open source	5 Apr 2025
6	Gemma 3 27B Google	130.0	4.9	47.7	—	—	22.5	—	—	131K	$0.080	$0.45	Open source	12 Mar 2025
7	Llama 4 Maverick Meta	132.2	—	—	—	—	—	5.7	—	1.05M	$0.19	$0.65	Open source	6 Apr 2025
8	Mistral Medium 3 Mistral AI	134.1	—	59.5	—	—	32.2	4.5	—	131K	$0.40	$2.00	Closed	7 May 2025
9	GPT-4.1 Mini OpenAI	135.0	—	65.8	—	6.7	44.7	—	—	1.05M	$0.40	$1.60	Closed	14 Apr 2025
10	GPT-4.1 OpenAI	136.8	—	66.9	48.5	6.0	38.3	5.4	—	1.05M	$2.00	$8.00	Closed	14 Apr 2025
11	GPT-5 Nano OpenAI· reasoning	139.4	—	69.4	—	20.0	81.1	—	—	400K	$0.050	$0.40	Closed	7 Aug 2025
12	Qwen3.5-9B Alibaba (Qwen)· reasoning	139.4	—	79.0	—	—	61.7	—	9.2	262K	$0.10	$0.15	Open source	24 Feb 2026
13	Mistral Medium 3.5 Mistral AI· reasoning	141.4	14.2	—	—	—	—	—	—	262K	$1.50	$7.50	Open source	28 Apr 2026
14	Claude Sonnet 4 Anthropic· reasoning	141.7	—	79.2	—	—	71.1	—	—	200K	$3.00	$15.0	Closed	22 May 2025
15	Gemma 4 26B A4B Google· reasoning	141.8	—	73.2	—	—	82.2	—	—	262K	$0.090	$0.30	Open source	2 Apr 2026
16	o1 OpenAI· reasoning	141.9	—	76.8	—	14.7	73.3	—	—	200K	$15.0	$60.0	Closed	17 Dec 2024
17	Claude Haiku 4.5 Anthropic· reasoning	142.4	16.9	71.2	—	—	66.7	—	29.8	200K	$1.00	$5.00	Closed	15 Oct 2025
18	Qwen3.5-35B-A3B Alibaba (Qwen)· reasoning	142.5	—	83.5	—	—	70.0	—	—	262K	$0.16	$1.30	Open source	24 Feb 2026
19	Gemma 4 31B Google· reasoning	142.7	—	75.8	—	—	73.3	—	—	262K	$0.090	$0.34	Open source	2 Apr 2026
20	Claude Opus 4.1 Anthropic· reasoning	144.1	—	77.3	73.3	12.6	68.9	—	38.0	200K	$15.0	$75.0	Closed	5 Aug 2025
21	Gemini 3.1 Flash Lite Google· reasoning	144.4	—	81.8	—	27.7	80.0	8.6	—	1.05M	$0.25	$1.50	Closed	3 Mar 2026
22	Qwen3.7 Flash Alibaba (Qwen)· reasoning	144.6	—	82.3	—	19.3	86.7	—	—	1M	$0.030	$0.13	Closed	27 Jul 2026
23	Gemini 3.5 Flash Lite Google· reasoning	145.1	22.2	83.3	—	26.0	71.1	—	—	1.05M	$0.30	$2.50	Closed	21 Jul 2026
24	GPT-5 Mini OpenAI· reasoning	145.5	16.8	75.0	—	46.7	86.7	—	—	400K	$0.25	$2.00	Closed	7 Aug 2025
25	o4 Mini OpenAI· reasoning	145.6	—	79.6	—	36.1	81.7	18.1	—	200K	$1.10	$4.40	Closed	16 Apr 2025
26	GPT-5.4 Nano OpenAI· reasoning	145.8	20.7	78.5	—	44.9	87.8	—	—	400K	$0.20	$1.25	Closed	17 Mar 2026
27	Qwen3.6 27B Alibaba (Qwen)· reasoning	146.5	21.4	85.9	—	35.1	91.1	—	—	262K	$0.32	$3.20	Open source	22 Apr 2026
28	Qwen3.5 397B A17B Alibaba (Qwen)· reasoning	146.6	18.4	86.4	—	31.2	88.9	—	—	262K	$0.55	$3.50	Open source	13 Feb 2026
29	Claude Sonnet 4.5 Anthropic· reasoning	146.8	20.7	—	—	—	—	—	—	1M	$3.00	$15.0	Closed	29 Sep 2025
30	o3 OpenAI· reasoning	146.9	—	81.8	—	33.3	83.9	20.3	—	200K	$2.00	$8.00	Closed	16 Apr 2025
31	MiniMax M3 MiniMax· reasoning	147.0	29.2	90.9	—	—	71.1	—	—	1.05M	$0.30	$1.20	Open source	1 Jun 2026
32	Qwen3.7 Plus Alibaba (Qwen)· reasoning	147.4	25.2	87.9	—	34.4	93.3	—	—	1M	$0.32	$1.28	Closed	2 Jun 2026
33	o3 Pro OpenAI· reasoning	147.4	—	—	—	—	—	—	—	200K	$20.0	$80.0	Closed	10 Jun 2025
34	Kimi K2.5 Moonshot AI· reasoning	148.1	—	—	73.8	—	—	24.4	43.2	262K	$0.45	$2.25	Open source	27 Jan 2026
35	Inkling Thinking Machines Lab· reasoning	148.6	25.0	—	—	—	—	—	—	524K	$1.00	$4.05	Open source	15 Jul 2026
36	GPT-5.4 Mini OpenAI· reasoning	148.8	24.1	83.6	—	—	87.2	—	—	400K	$0.75	$4.50	Closed	17 Mar 2026
37	GPT-5.1 OpenAI· reasoning	149.7	—	87.6	68.0	—	88.6	—	—	400K	$1.25	$10.0	Closed	13 Nov 2025
38	GPT-5 OpenAI· reasoning	150.0	—	86.2	73.6	55.4	91.4	25.3	—	400K	$1.25	$10.0	Closed	7 Aug 2025
39	Kimi K2.7 Code Moonshot AI· reasoning	150.0	25.8	87.9	—	54.0	95.6	—	—	262K	$0.66	$3.30	Open source	12 Jun 2026
40	Claude Opus 4.5 Anthropic· reasoning	150.1	—	—	—	—	—	—	—	200K	$5.00	$25.0	Closed	24 Nov 2025
41	Inkling Small Thinking Machines Lab· reasoning	150.1	—	—	—	—	—	—	—	524K	$0.45	$1.20	Open source	15 Jul 2026
42	GPT-5 Pro OpenAI· reasoning	150.3	—	—	—	55.8	—	31.6	—	400K	$15.0	$120.0	Closed	7 Oct 2025
43	Kimi K2.6 Moonshot AI· reasoning	151.0	27.0	90.8	76.7	57.2	96.1	—	—	262K	$0.65	$3.41	Open source	20 Apr 2026
44	GLM 5.3 Flash Z.ai (Zhipu AI)· reasoning	151.9	41.8	90.2	—	55.8	93.9	—	—	1.31M	$0.15	$0.50	Open source	20 Aug 2026
45	Grok 4.20 xAI· reasoning	152.0	—	89.3	—	44.9	92.2	—	57.3	2M	$1.25	$2.50	Closed	17 Feb 2026
46	Claude Sonnet 4.6 Anthropic· reasoning	152.3	30.1	83.3	—	—	75.6	—	—	1M	$3.00	$15.0	Closed	17 Feb 2026
47	GPT-5.2 OpenAI· reasoning	153.4	—	88.2	73.8	—	96.1	—	—	400K	$1.75	$14.0	Closed	11 Dec 2025
48	Grok 4.5 xAI· reasoning	154.0	38.8	93.4	—	57.2	97.8	—	—	500K	$2.00	$6.00	Closed	8 Jul 2026
49	Muse Spark 1.1 Meta· reasoning	154.3	33.7	—	—	—	—	—	—	1.05M	$1.25	$4.25	Closed	9 Jul 2026
50	Gemini 3.6 Flash Google· reasoning	154.4	34.0	94.1	—	58.9	94.2	—	—	1.05M	$0.75	$3.75	Closed	21 Jul 2026
51	Gemini 3.5 Flash Google· reasoning	154.6	32.6	92.8	79.3	62.8	95.6	—	—	1.05M	$1.50	$9.00	Closed	19 May 2026
52	DeepSeek V4.1 Flash DeepSeek· reasoning	155.0	39.5	—	—	—	—	—	—	1.05M	$0.035	$0.29	Open source	9 Sep 2026
53	Muse Spark 1.2 Meta· reasoning	155.2	39.6	—	—	—	—	—	—	1.05M	$1.25	$4.25	Closed	5 Aug 2026
54	Qwen3.8 Max (0902) Alibaba (Qwen)· reasoning	155.3	45.4	—	—	—	—	—	—	1M	$2.00	$6.00	Closed	1 Sep 2026
55	Claude Opus 4.6 Anthropic· reasoning	155.4	—	88.4	—	66.0	91.1	34.4	—	1M	$5.00	$25.0	Closed	5 Feb 2026
56	GPT-5.2 Pro OpenAI· reasoning	155.4	—	—	—	74.0	—	—	—	400K	$21.0	$168.0	Closed	11 Dec 2025
57	GPT-5.6 Luna OpenAI· reasoning	156.3	37.3	91.6	—	82.1	98.3	—	—	1.05M	$0.20	$1.20	Closed	9 Jul 2026
58	Claude Sonnet 5 Anthropic· reasoning	156.3	38.2	80.3	—	65.6	80.0	—	—	1M	$2.00	$10.0	Closed	30 Jun 2026
59	Claude Opus 4.7 Anthropic· reasoning	156.4	—	86.4	83.5	70.2	86.7	—	—	1M	$5.00	$25.0	Closed	16 Apr 2026
60	Grok 4.6 xAI· reasoning	156.5	44.3	94.0	—	—	97.8	—	—	500K	$2.00	$6.00	Closed	12 Aug 2026
61	GPT-5.3-Codex OpenAI· reasoning	156.8	—	—	74.8	—	—	—	78.4	400K	$1.75	$14.0	Closed	5 Feb 2026
62	Muse Spark 1.3 Meta· reasoning	156.9	—	—	—	74.0	—	—	—	1.05M	$1.25	$4.25	Closed	2 Sep 2026
63	GPT-5.4 OpenAI· reasoning	156.9	—	89.9	76.9	—	97.8	—	—	1.05M	$2.50	$15.0	Closed	5 Mar 2026
64	Gemini 3.8 Flash Google· reasoning	157.1	40.9	95.4	—	68.4	98.9	—	—	1.05M	$0.75	$3.75	Closed	2 Sep 2026
65	Kimi K3 Moonshot AI· reasoning	157.7	43.6	93.1	—	72.2	97.2	—	—	1.05M	$3.00	$15.0	Open source	16 Jul 2026
66	Gemini 3.7 Flash Google· reasoning	157.7	39.1	94.8	—	71.6	97.2	—	—	1.05M	$0.75	$3.75	Closed	13 Aug 2026
67	Claude Opus 4.8 Anthropic· reasoning	158.3	41.8	91.0	—	80.0	98.3	—	—	1M	$5.00	$25.0	Closed	28 May 2026
68	GPT-5.4 Pro OpenAI· reasoning	159.1	—	—	—	—	—	44.3	—	1.05M	$30.0	$180.0	Closed	5 Mar 2026
69	GPT-5.5 OpenAI· reasoning	159.3	38.4	—	—	—	—	—	—	1.05M	$5.00	$30.0	Closed	23 Apr 2026
70	GPT-5.6 Terra OpenAI· reasoning	159.3	42.1	93.3	—	86.0	99.7	—	—	1.05M	$2.00	$12.0	Closed	9 Jul 2026
71	GPT-5.6 Sol OpenAI· reasoning	162.0	47.0	93.5	—	89.1	100.0	—	—	1.05M	$2.00	$10.0	Closed	9 Jul 2026
72	GPT-5.5 Pro OpenAI· reasoning	162.4	—	—	—	—	—	—	—	1.05M	$30.0	$180.0	Closed	23 Apr 2026
73	Claude Opus 5 Anthropic· reasoning	162.7	50.8	93.9	—	85.6	98.9	—	—	1M	$5.00	$25.0	Closed	24 Jul 2026
74	Claude Fable 5 Anthropic· reasoning	163.6	49.6	85.9	—	87.0	100.0	—	—	1M	$10.0	$50.0	Closed	9 Jun 2026
75	Claude Fable 5.1 Anthropic· reasoning	165.0	53.4	—	—	90.2	100.0	—	—	1M	$10.0	$50.0	Closed	1 Sep 2026
76	GPT-6 Astra OpenAI· reasoning	166.6	52.7	95.8	—	93.7	100.0	—	—	1.05M	$10.0	$50.0	Closed	3 Sep 2026
77	Claude Opus 5.5 Anthropic· reasoning	—	57.6	—	—	—	—	—	—	1M	$4.00	$20.0	?	22 Sep 2026
78	Claude Opus 5.5 (batch) Anthropic· reasoning	—	57.6	—	—	—	—	—	—	1M	$2.00	$10.0	?	22 Sep 2026
79	Claude Fable 5.1 (batch) Anthropic· reasoning	—	53.4	—	—	—	—	—	—	1M	$5.00	$25.0	?	1 Sep 2026
80	GPT-6 Astra (batch) OpenAI· reasoning	—	52.7	—	—	—	—	—	—	1.05M	$5.00	$25.0	?	4 Sep 2026
81	Claude Opus 5 (batch) Anthropic· reasoning	—	50.8	—	—	—	—	—	—	1M	$2.50	$12.5	?	24 Jul 2026
82	Claude Fable 5 (batch) Anthropic· reasoning	—	49.6	—	—	—	—	—	—	1M	$5.00	$25.0	?	9 Jun 2026
83	GPT-6 Sol OpenAI· reasoning	—	47.5	—	—	—	—	—	—	1.05M	$2.00	$10.0	?	22 Sep 2026
84	GPT-6 Sol (batch) OpenAI· reasoning	—	47.5	—	—	—	—	—	—	1.05M	$1.00	$5.00	?	22 Sep 2026
85	GPT-5.6 Sol (batch) OpenAI· reasoning	—	47.0	—	—	—	—	—	—	1.05M	$1.00	$5.00	?	9 Jul 2026
86	Grok 4.7 xAI· reasoning	—	46.4	—	—	—	—	—	—	500K	$1.60	$4.80	?	21 Sep 2026
87	MiMo-V2.6-Pro Xiaomi· reasoning	—	46.3	—	—	—	—	—	—	1.05M	$0.43	$0.87	Open source	21 Sep 2026
88	Kimi K3 (batch) Moonshot AI· reasoning	—	43.6	—	—	—	—	—	—	1.05M	$2.28	$11.4	Open source	16 Jul 2026
89	GPT-5.6 Terra (batch) OpenAI· reasoning	—	42.1	—	—	—	—	—	—	1.05M	$1.00	$6.00	?	9 Jul 2026
90	GLM 5.3 Flash (batch) Z.ai (Zhipu AI)· reasoning	—	41.8	—	—	—	—	—	—	1.05M	$0.060	$0.20	Open source	26 Aug 2026
91	Claude Opus 4.8 (batch) Anthropic· reasoning	—	41.8	—	—	—	—	—	—	1M	$2.50	$12.5	?	27 May 2026
92	Gemini 3.8 Flash (batch) Google· reasoning	—	40.9	—	—	—	—	—	—	1.05M	$0.38	$1.88	?	2 Sep 2026
93	DeepSeek V4.1 Flash (batch) DeepSeek· reasoning	—	39.5	—	—	—	—	—	—	1.05M	$0.11	$0.34	Open source	10 Sep 2026
94	Gemini 3.7 Flash (batch) Google· reasoning	—	39.1	—	—	—	—	—	—	1.05M	$0.38	$1.88	?	13 Aug 2026
95	GPT-5.5 (batch) OpenAI· reasoning	—	38.4	—	—	—	—	—	—	1.05M	$2.50	$15.0	?	24 Apr 2026
96	Claude Sonnet 5 (batch) Anthropic· reasoning	—	38.2	—	—	—	—	—	—	1M	$1.00	$5.00	?	30 Jun 2026
97	MiMo-V2.6-Flash Xiaomi· reasoning	—	37.9	—	—	—	—	—	—	1.05M	$0.14	$0.28	Open source	21 Sep 2026
98	GPT-6 Luna OpenAI· reasoning	—	37.3	—	—	—	—	—	—	1.05M	$0.10	$0.50	?	22 Sep 2026
99	GPT-6 Luna (batch) OpenAI· reasoning	—	37.3	—	—	—	—	—	—	1.05M	$0.050	$0.25	?	22 Sep 2026
100	GPT-5.6 Luna (batch) OpenAI· reasoning	—	37.3	—	—	—	—	—	—	1.05M	$0.10	$0.60	?	9 Jul 2026