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Model intelligence

196 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

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.

#ModelECI ↓ContextIn $/MReleased
1GPT-6 Astra
OpenAI· reasoning
166.61.05M$10.03 Sep 2026
2Claude Fable 5.1
Anthropic· reasoning
165.01M$10.01 Sep 2026
3Claude Fable 5
Anthropic· reasoning
163.61M$10.09 Jun 2026
4Claude Opus 5
Anthropic· reasoning
162.71M$5.0024 Jul 2026
5GPT-5.5 Pro
OpenAI· reasoning
162.41.05M$30.023 Apr 2026
6GPT-5.6 Sol
OpenAI· reasoning
162.01.05M$2.009 Jul 2026
7GPT-5.6 Terra
OpenAI· reasoning
159.31.05M$2.009 Jul 2026
8GPT-5.5
OpenAI· reasoning
159.31.05M$5.0023 Apr 2026
9GPT-5.4 Pro
OpenAI· reasoning
159.11.05M$30.05 Mar 2026
10Claude Opus 4.8
Anthropic· reasoning
158.31M$5.0028 May 2026
11Gemini 3.7 Flash
Google· reasoning
157.71.05M$0.7513 Aug 2026
12Kimi K3
Moonshot AI· reasoning
157.71.05M$3.0016 Jul 2026
13Gemini 3.8 Flash
Google· reasoning
157.11.05M$0.752 Sep 2026
14GPT-5.4
OpenAI· reasoning
156.91.05M$2.505 Mar 2026
15Muse Spark 1.3
Meta· reasoning
156.91.05M$1.252 Sep 2026
16GPT-5.3-Codex
OpenAI· reasoning
156.8400K$1.755 Feb 2026
17Grok 4.6
xAI· reasoning
156.5500K$2.0012 Aug 2026
18Claude Opus 4.7
Anthropic· reasoning
156.41M$5.0016 Apr 2026
19Claude Sonnet 5
Anthropic· reasoning
156.31M$2.0030 Jun 2026
20GPT-5.6 Luna
OpenAI· reasoning
156.31.05M$0.209 Jul 2026
21GPT-5.2 Pro
OpenAI· reasoning
155.4400K$21.011 Dec 2025
22Claude Opus 4.6
Anthropic· reasoning
155.41M$5.005 Feb 2026
23Qwen3.8 Max (0902)
Alibaba (Qwen)· reasoning
155.31M$2.001 Sep 2026
24Muse Spark 1.2
Meta· reasoning
155.21.05M$1.255 Aug 2026
25DeepSeek V4.1 Flash
DeepSeek· reasoning
155.01.05M$0.309 Sep 2026
26Gemini 3.5 Flash
Google· reasoning
154.61.05M$1.5019 May 2026
27Gemini 3.6 Flash
Google· reasoning
154.41.05M$0.7521 Jul 2026
28Muse Spark 1.1
Meta· reasoning
154.31.05M$1.259 Jul 2026
29Grok 4.5
xAI· reasoning
154.0500K$2.008 Jul 2026
30GPT-5.2
OpenAI· reasoning
153.4400K$1.7511 Dec 2025
31Claude Sonnet 4.6
Anthropic· reasoning
152.31M$3.0017 Feb 2026
32Grok 4.20
xAI· reasoning
152.02M$1.2517 Feb 2026
33GLM 5.3 Flash
Z.ai (Zhipu AI)· reasoning
151.91.31M$0.1520 Aug 2026
34Kimi K2.6
Moonshot AI· reasoning
151.0262K$0.6520 Apr 2026
35GPT-5 Pro
OpenAI· reasoning
150.3400K$15.07 Oct 2025
36Inkling Small150.1524K$0.4515 Jul 2026
37Claude Opus 4.5
Anthropic· reasoning
150.1200K$5.0024 Nov 2025
38Kimi K2.7 Code
Moonshot AI· reasoning
150.0262K$0.6612 Jun 2026
39GPT-5
OpenAI· reasoning
150.0400K$1.257 Aug 2025
40GPT-5.1
OpenAI· reasoning
149.7400K$1.2513 Nov 2025
41GPT-5.4 Mini
OpenAI· reasoning
148.8400K$0.7517 Mar 2026
42Inkling148.6524K$1.0015 Jul 2026
43Kimi K2.5
Moonshot AI· reasoning
148.1262K$0.4527 Jan 2026
44o3 Pro
OpenAI· reasoning
147.4200K$20.010 Jun 2025
45Qwen3.7 Plus
Alibaba (Qwen)· reasoning
147.41M$0.322 Jun 2026
46MiniMax M3
MiniMax· reasoning
147.01.05M$0.301 Jun 2026
47o3
OpenAI· reasoning
146.9200K$2.0016 Apr 2025
48Claude Sonnet 4.5
Anthropic· reasoning
146.81M$3.0029 Sep 2025
49Qwen3.5 397B A17B
Alibaba (Qwen)· reasoning
146.6262K$0.5513 Feb 2026
50Qwen3.6 27B
Alibaba (Qwen)· reasoning
146.5262K$0.3222 Apr 2026
51GPT-5.4 Nano
OpenAI· reasoning
145.8400K$0.2017 Mar 2026
52o4 Mini
OpenAI· reasoning
145.6200K$1.1016 Apr 2025
53GPT-5 Mini
OpenAI· reasoning
145.5400K$0.257 Aug 2025
54Gemini 3.5 Flash Lite
Google· reasoning
145.11.05M$0.3021 Jul 2026
55Qwen3.7 Flash
Alibaba (Qwen)· reasoning
144.61M$0.03027 Jul 2026
56Gemini 3.1 Flash Lite
Google· reasoning
144.41.05M$0.253 Mar 2026
57Claude Opus 4.1
Anthropic· reasoning
144.1200K$15.05 Aug 2025
58Gemma 4 31B
Google· reasoning
142.7262K$0.0902 Apr 2026
59Qwen3.5-35B-A3B
Alibaba (Qwen)· reasoning
142.5262K$0.1624 Feb 2026
60Claude Haiku 4.5
Anthropic· reasoning
142.4200K$1.0015 Oct 2025
61o1
OpenAI· reasoning
141.9200K$15.017 Dec 2024
62Gemma 4 26B A4B
Google· reasoning
141.8262K$0.0902 Apr 2026
63Claude Sonnet 4
Anthropic· reasoning
141.7200K$3.0022 May 2025
64Mistral Medium 3.5
Mistral AI· reasoning
141.4262K$1.5028 Apr 2026
65Qwen3.5-9B
Alibaba (Qwen)· reasoning
139.4262K$0.1024 Feb 2026
66GPT-5 Nano
OpenAI· reasoning
139.4400K$0.0507 Aug 2025
67GPT-4.1136.81.05M$2.0014 Apr 2025
68GPT-4.1 Mini135.01.05M$0.4014 Apr 2025
69Mistral Medium 3134.1131K$0.407 May 2025
70Llama 4 Maverick132.21.05M$0.196 Apr 2025
71Gemma 3 27B130.0131K$0.08012 Mar 2025
72Llama 4 Scout129.61.31M$0.105 Apr 2025
73GPT-4.1 Nano129.61.05M$0.1014 Apr 2025
74GPT-4o-mini126.6128K$0.1518 Jul 2024
75Gemma 3 12B123.5131K$0.05012 Mar 2025
76Gemma 3 4B116.0131K$0.05012 Mar 2025
77Claude Opus 5.5
Anthropic· reasoning
—1M$4.0022 Sep 2026
78Claude Sonnet 5.5
Anthropic· reasoning
—1M$2.0028 Sep 2026
79GPT-6 Sol
OpenAI· reasoning
—1.05M$2.0022 Sep 2026
80Grok 4.7
xAI· reasoning
—500K$2.0021 Sep 2026
81MiMo-V2.6-Pro
Xiaomi· reasoning
—1.05M$0.4321 Sep 2026
82MiMo-V2.6-Flash
Xiaomi· reasoning
—1.05M$0.1421 Sep 2026
83GPT-6 Luna
OpenAI· reasoning
—1.05M$0.1022 Sep 2026
84Qwen3.8 27B
Alibaba (Qwen)· reasoning
—1M$0.05314 Aug 2026
85Gemini 3.1 Pro Preview
Google· reasoning
—1.05M$2.0019 Feb 2026
86Grok 4.3
xAI· reasoning
—1M$1.2530 Apr 2026
87Ling 3.0 Flash VL—262K$0.02110 Sep 2026
88Qwen3.6 35B A3B
Alibaba (Qwen)· reasoning
—262K$0.1527 Apr 2026
89Gemini 2.5 Pro
Google· reasoning
—1.05M$1.2517 Jun 2025
90Gemini 3.1 Flash Lite Preview
Google· reasoning
—1.05M$0.253 Mar 2026
91Qwen3.5-122B-A10B
Alibaba (Qwen)· reasoning
—262K$0.2625 Feb 2026
92Mistral Small 4
Mistral AI· reasoning
—262K$0.1516 Mar 2026
93Mistral Large 3 2512—262K$0.501 Dec 2025
94Mistral Medium 3.1—131K$0.4013 Aug 2025
95Ministral 3 14B 2512—262K$0.202 Dec 2025
96Ministral 3 8B 2512—262K$0.152 Dec 2025
97Ministral 3 3B 2512—131K$0.102 Dec 2025
98Jev Router—1M—25 Sep 2026
99Perceptron Mk1.5
Perceptron· reasoning
—37K$0.1525 Sep 2026
100Ember-1
Fireworks AI· reasoning
—1.05M$3.0024 Sep 2026
Showing 100 of 196. Benchmark cells are % (best reported setting). 3.8K benchmark results in total.Next →Export CSV