Specs ranking
Best LLMs With a 1M+ Token Context Window in October 2026
As of October 2026, GPT-6 Astra leads the Noometry Index with a score of 70.8, ahead of Claude Fable 5.1 at 69.0.
Last verified
Ranked models that accept at least one million tokens of input.
- GPT-6 Astra 70.8
- Claude Fable 5.1 69.0
- Claude Opus 5.5 68.6
- Claude Opus 5 67.8
- Claude Fable 5 66.8
- GPT-6.1 Sol 65.6
- GPT-5.6 Sol 65.0
- GPT-5.5 Pro 64.3
- GPT-5.5 63.4
- Claude Sonnet 5.5 61.9
Full ranking
71 models
| 1 | OpenAI GPT-6 Astra | OpenAI | Proprietary | 1.05M | 70.8 | $10 | $50 | 3.54 | — |
| 2 | Anthropic Claude Fable 5.1 | Anthropic | Proprietary | 1M | 69.0 | $10 | $50 | 3.45 | — |
| 3 | Anthropic Claude Opus 5.5 | Anthropic | Proprietary | 1M | 68.6 | $4 | $20 | 8.57 | — |
| 4 | Anthropic Claude Opus 5 | Anthropic | Proprietary | 1M | 67.8 | $5 | $25 | 6.78 | — |
| 5 | Anthropic Claude Fable 5 | Anthropic | Proprietary | 1M | 66.8 | $10 | $50 | 3.34 | 25 |
| 6 | OpenAI GPT-6.1 Sol | OpenAI | Proprietary | 1.05M | 65.6 | $2 | $10 | 16.4 | — |
| 7 | OpenAI GPT-5.6 Sol | OpenAI | Proprietary | 1.05M | 65.0 | $4 | $20 | 8.12 | 10 |
| 8 | OpenAI GPT-5.5 Pro | OpenAI | Proprietary | 1.05M | 64.3 | $30 | $180 | 0.95 | — |
| 9 | OpenAI GPT-5.5 | OpenAI | Proprietary | 1.05M | 63.4 | $5 | $30 | 5.63 | 25 |
| 10 | Anthropic Claude Sonnet 5.5 | Anthropic | Proprietary | 1M | 61.9 | $2 | $10 | 15.5 | — |
| 11 |  Google Gemini 3.8 Flash | Proprietary | 1.05M | 61.8 | $0.75 | $3.75 | 41.2 | — | |
| 12 | OpenAI GPT-6 Sol | OpenAI | Proprietary | 1.05M | 61.8 | $2 | $10 | 15.4 | — |
| 13 | Anthropic Claude Opus 4.8 | Anthropic | Proprietary | 1M | 60.7 | $5 | $25 | 6.07 | 34 |
| 14 | Google Gemini 3.7 Flash | Proprietary | 1.05M | 59.8 | $0.75 | $3.75 | 39.9 | — | |
| 15 | Moonshot AI Kimi K3 | Moonshot AI | Open | 1.05M | 59.5 | $3 | $15 | 9.92 | — |
| 16 | OpenAI GPT-5.4 | OpenAI | Proprietary | 1.05M | 59.4 | $2.50 | $15 | 10.6 | 12 |
| 17 | OpenAI GPT-5.6 Terra | OpenAI | Proprietary | 1.05M | 59.2 | $2 | $12 | 13.1 | 11 |
| 18 | OpenAI GPT-5.4 Pro | OpenAI | Proprietary | 1.05M | 58.9 | $30 | $180 | 0.87 | — |
| 19 | Anthropic Claude Opus 4.7 | Anthropic | Proprietary | 1M | 58.3 | $5 | $25 | 5.83 | 33 |
| 20 | Anthropic Claude Opus 4.6 | Anthropic | Proprietary | 1M | 58.2 | $5 | $25 | 5.82 | 19 |
| 21 |  Alibaba (Qwen) Qwen3.8 Max | Alibaba (Qwen) | Proprietary | 1M | 56.8 | $2 | $6 | 18.9 | — |
| 22 | Google Gemini 3.1 Pro Preview | Proprietary | 1.05M | 56.7 | $2 | $12 | 12.6 | — | |
| 23 | Z.ai (Zhipu) GLM-5.3 | Z.ai (Zhipu) | Open | 1M | 54.8 | $1.40 | $4.40 | 25.5 | — |
| 24 |  Meta Muse Spark 1.3 | Meta | Proprietary | 1.05M | 54.8 | $1.25 | $4.25 | 27.4 | — |
| 25 | Anthropic Claude Sonnet 5 | Anthropic | Proprietary | 1M | 54.6 | $2 | $10 | 13.7 | — |
| 26 | OpenAI GPT-5.6 Luna | OpenAI | Proprietary | 1.05M | 54.6 | $0.20 | $1.20 | 121 | 12 |
| 27 |  DeepSeek DeepSeek V4 Pro | DeepSeek | Open | 1M | 54.3 | $0.66 | $1.98 | 54.9 | 16 |
| 28 | Google Gemini 3.5 Flash | Proprietary | 1.05M | 54.2 | $1.50 | $9 | 16.1 | — | |
| 29 | Google Gemini 3.6 Flash | Proprietary | 1.05M | 54.1 | $0.75 | $3.75 | 36.1 | — | |
| 30 | DeepSeek DeepSeek V4 Flash | DeepSeek | Open | 1M | 53.6 | $0.15 | $0.60 | 204 | 6 |
| 31 | OpenAI GPT-6 Luna | OpenAI | Proprietary | 1.05M | 53.3 | $0.10 | $0.50 | 266 | — |
| 32 | DeepSeek DeepSeek V4.1 Flash | DeepSeek | Open | 1M | 52.8 | $0.15 | $0.60 | 201 | — |
| 33 | Google Gemini 3 Flash Preview | Proprietary | 1.05M | 52.3 | $0.50 | $3 | 46.5 | — | |
| 34 | Z.ai (Zhipu) GLM-5.3-Flash | Z.ai (Zhipu) | Open | 1M | 51.8 | $0.15 | $0.50 | 218 | — |
| 35 | Alibaba (Qwen) Qwen3.7 Max | Alibaba (Qwen) | Proprietary | 1M | 51.5 | $2.50 | $7.50 | 13.7 | — |
| 36 | Z.ai (Zhipu) GLM-5.2 | Z.ai (Zhipu) | Open | 1M | 51.1 | $1.40 | $4.40 | 23.8 | 23 |
| 37 | Meta Muse Spark 1.2 | Meta | Proprietary | 1.05M | 50.3 | $1.25 | $4.25 | 25.2 | — |
| 38 | Xiaomi MiMo-V2.6-Pro | Xiaomi | Open | 1.05M | 50.3 | $0.43 | $0.87 | 92.5 | — |
| 39 | Anthropic Claude Sonnet 4.6 | Anthropic | Proprietary | 1M | 50.3 | $3 | $15 | 8.38 | — |
| 40 | Meta Muse Spark 1.1 | Meta | Proprietary | 1.05M | 49.9 | $1.25 | $4.25 | 25 | — |
| 41 | Anthropic Claude Haiku 5.5 | Anthropic | Proprietary | 1M | 49.5 | $0.10 | $0.50 | 247 | — |
| 42 | xAI Grok 4.20 (Non-Reasoning) | xAI | Proprietary | 1M | 48.6 | $1.25 | $2.50 | 31.1 | 61 |
| 43 | Xiaomi MiMo-V2.6-Flash | Xiaomi | Open | 1.05M | 48.5 | $0.14 | $0.28 | 277 | — |
| 44 |  StepFun Step 5 Preview | StepFun | Proprietary | 1.02M | 47.9 | $1 | $2.70 | 33.6 | — |
| 45 | Alibaba (Qwen) Qwen3.6 Plus | Alibaba (Qwen) | Proprietary | 1M | 47.5 | $0.50 | $3 | 42.2 | — |
| 46 | xAI Grok 4.20 Multi-Agent | xAI | Proprietary | 1M | 46.2 | $1.25 | $2.50 | 29.6 | — |
| 47 | Alibaba (Qwen) Qwen3.7 Plus | Alibaba (Qwen) | Proprietary | 1M | 45.3 | $0.40 | $1.60 | 64.8 | — |
| 48 |  Tencent Hy4 preview | Tencent | Open | 1.05M | 45.3 | $0.75 | $2.25 | 40.2 | — |
| 49 | Xiaomi MiMo-V2.5-Pro | Xiaomi | Open | 1.05M | 45.2 | $0.43 | $0.87 | 83.2 | — |
| 50 | Google Gemini 2.5 Pro | Proprietary | 1.05M | 45.0 | $1.25 | $10 | 13.1 | 5 | |
| 51 |  MiniMax MiniMax-M3 | MiniMax | Open | 1M | 43.8 | $0.30 | $1.20 | 83.4 | — |
| 52 | xAI Grok 4.3 | xAI | Proprietary | 1M | 43.8 | $1.25 | $2.50 | 28 | — |
| 53 | Xiaomi MiMo-V2.5 | Xiaomi | Open | 1.05M | 43.4 | $0.14 | $0.28 | 248 | — |
| 54 |  Mistral AI Mistral Large 4 | Mistral AI | Proprietary | 1.05M | 43.1 | $0.68 | $2.09 | 41.7 | — |
| 55 | Xiaomi MiMo-V2-Pro | Xiaomi | Proprietary | 1.05M | 43.0 | $0.43 | $0.87 | 79 | — |
| 56 | Alibaba (Qwen) Qwen3.5 Plus | Alibaba (Qwen) | Proprietary | 1M | 42.9 | $0.40 | $2.40 | 47.6 | — |
| 57 | Alibaba (Qwen) Qwen3.5-Flash | Alibaba (Qwen) | Proprietary | 1M | 42.5 | $0.10 | $0.40 | 243 | — |
| 58 | Google Gemini 3.5 Flash Lite | Proprietary | 1.05M | 41.5 | $0.30 | $2.50 | 48.8 | — | |
| 59 | Google Gemini 3.1 Flash Lite | Proprietary | 1.05M | 40.8 | $0.25 | $1.50 | 72.5 | 10 | |
| 60 | MiniMax MiniMax M1 | MiniMax | Open | 1M | 40.3 | $0.55 | $2.20 | 41.9 | — |
| 61 | Alibaba (Qwen) Qwen3.7 Flash | Alibaba (Qwen) | Proprietary | 1M | 39.9 | $0.03 | $0.13 | 726 | — |
| 62 | Amazon Nova 2 Lite | Amazon | Proprietary | 1M | 39.7 | $0.30 | $2.50 | 46.7 | — |
| 63 | Google Gemini 2.5 Flash | Proprietary | 1.05M | 39.3 | $0.30 | $2.50 | 46.2 | 152 | |
| 64 | Alibaba (Qwen) Qwen3.6 Flash | Alibaba (Qwen) | Proprietary | 1M | 38.8 | $0.19 | $1.13 | 91.9 | — |
| 65 | Amazon Nova Premier 1.0 | Amazon | Proprietary | 1M | 38.3 | $2.50 | $12.50 | 7.67 | 9 |
| 66 | Alibaba (Qwen) Qwen Plus | Alibaba (Qwen) | Proprietary | 1M | 37.1 | $0.40 | $1.20 | 61.8 | 37 |
| 67 | Google Gemini 2.5 Flash-Lite | Proprietary | 1.05M | 37.0 | $0.10 | $0.40 | 211 | 172 | |
| 68 | OpenAI GPT-4.1 | OpenAI | Proprietary | 1.05M | 35.9 | $2 | $8 | 10.3 | 116 |
| 69 | OpenAI GPT-4.1 mini | OpenAI | Proprietary | 1.05M | 33.6 | $0.40 | $1.60 | 48.1 | 86 |
| 70 | OpenAI GPT-4.1 nano | OpenAI | Proprietary | 1.05M | 27.9 | $0.10 | $0.40 | 159 | 135 |
| 71 | Alibaba (Qwen) Qwen Turbo | Alibaba (Qwen) | Proprietary | 1M | 27.1 | $0.05 | $0.20 | 310 | — |
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Frequently asked questions
Which AI models have the largest context window?
As of October 2026, GPT-6 Astra leads the Noometry Index with a score of 70.8, ahead of Claude Fable 5.1 at 69.0.
What are the top 5 in this ranking?
GPT-6 Astra, Claude Fable 5.1, Claude Opus 5.5, Claude Opus 5, Claude Fable 5, in that order, as of October 2026.
How is this list ranked?
By the Noometry Index, which is fitted from every public benchmark result and adjusted for how hard each benchmark is. Models need several independent results to be ranked.