Model intelligence
153 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.
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.
| # | Model | ECI ↓ | Context | In $/M | Weights | Released |
|---|---|---|---|---|---|---|
| 1 | GPT-6 Astra OpenAI· reasoning | 166.6 | 1.05M | $10.0 | Closed | 3 Sep 2026 |
| 2 | Claude Fable 5.1 Anthropic· reasoning | 165.0 | 1M | $10.0 | Closed | 1 Sep 2026 |
| 3 | Claude Fable 5 Anthropic· reasoning | 163.6 | 1M | $10.0 | Closed | 9 Jun 2026 |
| 4 | Claude Opus 5 Anthropic· reasoning | 162.7 | 1M | $5.00 | Closed | 24 Jul 2026 |
| 5 | GPT-5.5 Pro OpenAI· reasoning | 162.4 | 1.05M | $30.0 | Closed | 23 Apr 2026 |
| 6 | GPT-5.6 Sol OpenAI· reasoning | 162.0 | 1.05M | $2.00 | Closed | 9 Jul 2026 |
| 7 | GPT-5.6 Terra OpenAI· reasoning | 159.3 | 1.05M | $2.00 | Closed | 9 Jul 2026 |
| 8 | GPT-5.5 OpenAI· reasoning | 159.3 | 1.05M | $5.00 | Closed | 23 Apr 2026 |
| 9 | GPT-5.4 Pro OpenAI· reasoning | 159.1 | 1.05M | $30.0 | Closed | 5 Mar 2026 |
| 10 | Claude Opus 4.8 Anthropic· reasoning | 158.3 | 1M | $5.00 | Closed | 28 May 2026 |
| 11 | Gemini 3.7 Flash Google· reasoning | 157.7 | 1.05M | $0.75 | Closed | 13 Aug 2026 |
| 12 | Kimi K3 Moonshot AI· reasoning | 157.7 | 1.05M | $3.00 | Open source | 16 Jul 2026 |
| 13 | Gemini 3.8 Flash Google· reasoning | 157.1 | 1.05M | $0.75 | Closed | 2 Sep 2026 |
| 14 | GPT-5.4 OpenAI· reasoning | 156.9 | 1.05M | $2.50 | Closed | 5 Mar 2026 |
| 15 | Muse Spark 1.3 Meta· reasoning | 156.9 | 1.05M | $1.25 | Closed | 2 Sep 2026 |
| 16 | GPT-5.3-Codex OpenAI· reasoning | 156.8 | 400K | $1.75 | Closed | 5 Feb 2026 |
| 17 | Grok 4.6 xAI· reasoning | 156.5 | 500K | $2.00 | Closed | 12 Aug 2026 |
| 18 | Claude Opus 4.7 Anthropic· reasoning | 156.4 | 1M | $5.00 | Closed | 16 Apr 2026 |
| 19 | Claude Sonnet 5 Anthropic· reasoning | 156.3 | 1M | $2.00 | Closed | 30 Jun 2026 |
| 20 | GPT-5.6 Luna OpenAI· reasoning | 156.3 | 1.05M | $0.20 | Closed | 9 Jul 2026 |
| 21 | GPT-5.2 Pro OpenAI· reasoning | 155.4 | 400K | $21.0 | Closed | 11 Dec 2025 |
| 22 | Claude Opus 4.6 Anthropic· reasoning | 155.4 | 1M | $5.00 | Closed | 5 Feb 2026 |
| 23 | Qwen3.8 Max (0902) Alibaba (Qwen)· reasoning | 155.3 | 1M | $2.00 | Closed | 1 Sep 2026 |
| 24 | Muse Spark 1.2 Meta· reasoning | 155.2 | 1.05M | $1.25 | Closed | 5 Aug 2026 |
| 25 | DeepSeek V4.1 Flash DeepSeek· reasoning | 155.0 | 1.05M | $0.30 | Open source | 9 Sep 2026 |
| 26 | Gemini 3.5 Flash Google· reasoning | 154.6 | 1.05M | $1.50 | Closed | 19 May 2026 |
| 27 | Gemini 3.6 Flash Google· reasoning | 154.4 | 1.05M | $0.75 | Closed | 21 Jul 2026 |
| 28 | Muse Spark 1.1 Meta· reasoning | 154.3 | 1.05M | $1.25 | Closed | 9 Jul 2026 |
| 29 | Grok 4.5 xAI· reasoning | 154.0 | 500K | $2.00 | Closed | 8 Jul 2026 |
| 30 | GPT-5.2 OpenAI· reasoning | 153.4 | 400K | $1.75 | Closed | 11 Dec 2025 |
| 31 | Claude Sonnet 4.6 Anthropic· reasoning | 152.3 | 1M | $3.00 | Closed | 17 Feb 2026 |
| 32 | Grok 4.20 xAI· reasoning | 152.0 | 2M | $1.25 | Closed | 17 Feb 2026 |
| 33 | GLM 5.3 Flash Z.ai (Zhipu AI)· reasoning | 151.9 | 1.31M | $0.15 | Open source | 20 Aug 2026 |
| 34 | Kimi K2.6 Moonshot AI· reasoning | 151.0 | 262K | $0.65 | Open source | 20 Apr 2026 |
| 35 | GPT-5 Pro OpenAI· reasoning | 150.3 | 400K | $15.0 | Closed | 7 Oct 2025 |
| 36 | Inkling Small Thinking Machines Lab· reasoning | 150.1 | 524K | $0.45 | Open source | 15 Jul 2026 |
| 37 | Claude Opus 4.5 Anthropic· reasoning | 150.1 | 200K | $5.00 | Closed | 24 Nov 2025 |
| 38 | Kimi K2.7 Code Moonshot AI· reasoning | 150.0 | 262K | $0.66 | Open source | 12 Jun 2026 |
| 39 | GPT-5 OpenAI· reasoning | 150.0 | 400K | $1.25 | Closed | 7 Aug 2025 |
| 40 | GPT-5.1 OpenAI· reasoning | 149.7 | 400K | $1.25 | Closed | 13 Nov 2025 |
| 41 | GPT-5.4 Mini OpenAI· reasoning | 148.8 | 400K | $0.75 | Closed | 17 Mar 2026 |
| 42 | Inkling Thinking Machines Lab· reasoning | 148.6 | 524K | $1.00 | Open source | 15 Jul 2026 |
| 43 | Kimi K2.5 Moonshot AI· reasoning | 148.1 | 262K | $0.45 | Open source | 27 Jan 2026 |
| 44 | o3 Pro OpenAI· reasoning | 147.4 | 200K | $20.0 | Closed | 10 Jun 2025 |
| 45 | Qwen3.7 Plus Alibaba (Qwen)· reasoning | 147.4 | 1M | $0.32 | Closed | 2 Jun 2026 |
| 46 | MiniMax M3 MiniMax· reasoning | 147.0 | 1.05M | $0.30 | Open source | 1 Jun 2026 |
| 47 | o3 OpenAI· reasoning | 146.9 | 200K | $2.00 | Closed | 16 Apr 2025 |
| 48 | Claude Sonnet 4.5 Anthropic· reasoning | 146.8 | 1M | $3.00 | Closed | 29 Sep 2025 |
| 49 | Qwen3.5 397B A17B Alibaba (Qwen)· reasoning | 146.6 | 262K | $0.55 | Open source | 13 Feb 2026 |
| 50 | Qwen3.6 27B Alibaba (Qwen)· reasoning | 146.5 | 262K | $0.32 | Open source | 22 Apr 2026 |
| 51 | GPT-5.4 Nano OpenAI· reasoning | 145.8 | 400K | $0.20 | Closed | 17 Mar 2026 |
| 52 | o4 Mini OpenAI· reasoning | 145.6 | 200K | $1.10 | Closed | 16 Apr 2025 |
| 53 | GPT-5 Mini OpenAI· reasoning | 145.5 | 400K | $0.25 | Closed | 7 Aug 2025 |
| 54 | Gemini 3.5 Flash Lite Google· reasoning | 145.1 | 1.05M | $0.30 | Closed | 21 Jul 2026 |
| 55 | Qwen3.7 Flash Alibaba (Qwen)· reasoning | 144.6 | 1M | $0.030 | Closed | 27 Jul 2026 |
| 56 | Gemini 3.1 Flash Lite Google· reasoning | 144.4 | 1.05M | $0.25 | Closed | 3 Mar 2026 |
| 57 | Claude Opus 4.1 Anthropic· reasoning | 144.1 | 200K | $15.0 | Closed | 5 Aug 2025 |
| 58 | Gemma 4 31B Google· reasoning | 142.7 | 262K | $0.090 | Open source | 2 Apr 2026 |
| 59 | Qwen3.5-35B-A3B Alibaba (Qwen)· reasoning | 142.5 | 262K | $0.16 | Open source | 24 Feb 2026 |
| 60 | Claude Haiku 4.5 Anthropic· reasoning | 142.4 | 200K | $1.00 | Closed | 15 Oct 2025 |
| 61 | o1 OpenAI· reasoning | 141.9 | 200K | $15.0 | Closed | 17 Dec 2024 |
| 62 | Gemma 4 26B A4B Google· reasoning | 141.8 | 262K | $0.090 | Open source | 2 Apr 2026 |
| 63 | Claude Sonnet 4 Anthropic· reasoning | 141.7 | 200K | $3.00 | Closed | 22 May 2025 |
| 64 | Mistral Medium 3.5 Mistral AI· reasoning | 141.4 | 262K | $1.50 | Open source | 28 Apr 2026 |
| 65 | Qwen3.5-9B Alibaba (Qwen)· reasoning | 139.4 | 262K | $0.10 | Open source | 24 Feb 2026 |
| 66 | GPT-5 Nano OpenAI· reasoning | 139.4 | 400K | $0.050 | Closed | 7 Aug 2025 |
| 67 | Claude Opus 5.5 Anthropic· reasoning | — | 1M | $4.00 | ? | 22 Sep 2026 |
| 68 | Claude Sonnet 5.5 Anthropic· reasoning | — | 1M | $2.00 | ? | 28 Sep 2026 |
| 69 | GPT-6 Sol OpenAI· reasoning | — | 1.05M | $2.00 | ? | 22 Sep 2026 |
| 70 | Grok 4.7 xAI· reasoning | — | 500K | $2.00 | ? | 21 Sep 2026 |
| 71 | MiMo-V2.6-Pro Xiaomi· reasoning | — | 1.05M | $0.43 | Open source | 21 Sep 2026 |
| 72 | MiMo-V2.6-Flash Xiaomi· reasoning | — | 1.05M | $0.14 | Open source | 21 Sep 2026 |
| 73 | GPT-6 Luna OpenAI· reasoning | — | 1.05M | $0.10 | ? | 22 Sep 2026 |
| 74 | Qwen3.8 27B Alibaba (Qwen)· reasoning | — | 1M | $0.053 | Open source | 14 Aug 2026 |
| 75 | Gemini 3.1 Pro Preview Google· reasoning | — | 1.05M | $2.00 | ? | 19 Feb 2026 |
| 76 | Grok 4.3 xAI· reasoning | — | 1M | $1.25 | ? | 30 Apr 2026 |
| 77 | Ling 3.0 Flash VL inclusionAI (Ant Group)· reasoning | — | 262K | $0.021 | Open source | 10 Sep 2026 |
| 78 | Qwen3.6 35B A3B Alibaba (Qwen)· reasoning | — | 262K | $0.15 | Open source | 27 Apr 2026 |
| 79 | Gemini 2.5 Pro Google· reasoning | — | 1.05M | $1.25 | ? | 17 Jun 2025 |
| 80 | Gemini 3.1 Flash Lite Preview Google· reasoning | — | 1.05M | $0.25 | ? | 3 Mar 2026 |
| 81 | Qwen3.5-122B-A10B Alibaba (Qwen)· reasoning | — | 262K | $0.26 | Open source | 25 Feb 2026 |
| 82 | Mistral Small 4 Mistral AI· reasoning | — | 262K | $0.15 | Open source | 16 Mar 2026 |
| 83 | Perceptron Mk1.5 Perceptron· reasoning | — | 37K | $0.15 | ? | 25 Sep 2026 |
| 84 | Ember-1 Fireworks AI· reasoning | — | 1.05M | $3.00 | ? | 24 Sep 2026 |
| 85 | Qwen3.8 Max Prime Alibaba (Qwen)· reasoning | — | 1M | $4.00 | ? | 23 Sep 2026 |
| 86 | GPT-6 Sol Pro OpenAI· reasoning | — | 1.05M | $2.00 | ? | 22 Sep 2026 |
| 87 | GPT-6 Luna Pro OpenAI· reasoning | — | 1.05M | $0.10 | ? | 22 Sep 2026 |
| 88 | Qwen3.8 Omni Flash Alibaba (Qwen)· reasoning | — | 1M | $0.15 | ? | 21 Sep 2026 |
| 89 | MiMo-V2.6-Pro-UltraSpeed Xiaomi· reasoning | — | 1.05M | $4.35 | ? | 21 Sep 2026 |
| 90 | GLM 5.3 FlashX Z.ai (Zhipu AI)· reasoning | — | 1.05M | $0.37 | ? | 18 Sep 2026 |
| 91 | Ternary Bonsai 2 27B PrismML· reasoning | — | 262K | $0.075 | Open source | 18 Sep 2026 |
| 92 | Fugu Max Sakana AI· reasoning | — | 1M | $2.00 | ? | 11 Sep 2026 |
| 93 | Fugu Ultra v2 Sakana AI· reasoning | — | 1M | $5.00 | ? | 11 Sep 2026 |
| 94 | Nex-N2.5-Pro Nex AGI· reasoning | — | 262K | $0.075 | Open source | 8 Sep 2026 |
| 95 | Nex-N2.5-Mini Nex AGI· reasoning | — | 262K | $0.025 | Open source | 8 Sep 2026 |
| 96 | GPT-6 Astra Pro OpenAI· reasoning | — | 1.05M | $10.0 | ? | 4 Sep 2026 |
| 97 | Muse Spark 1.3 Contributor Meta· reasoning | — | 1.05M | $0.10 | ? | 2 Sep 2026 |
| 98 | Qwen3.8 Flash Alibaba (Qwen)· reasoning | — | 1M | $0.15 | Open source | 26 Aug 2026 |
| 99 | Muse Spark 1.2 Contributor Meta· reasoning | — | 1.05M | $0.10 | ? | 21 Aug 2026 |
| 100 | DeepSeek V4 Flash Vision Exp DeepSeek· reasoning | — | 1.05M | $0.22 | Open source | 21 Aug 2026 |
Showing 100 of 153. Benchmark cells are % (best reported setting). 3.8K benchmark results in total.Next →Export CSV