Region ranking
Best American AI Models 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
Models from labs headquartered in the United States.
- 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
205 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 | 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 | Proprietary | 1.05M | 59.8 | $0.75 | $3.75 | 39.9 | — | ||
| 15 | OpenAI GPT-5.4 | OpenAI | Proprietary | 1.05M | 59.4 | $2.50 | $15 | 10.6 | 12 |
| 16 | OpenAI GPT-5.6 Terra | OpenAI | Proprietary | 1.05M | 59.2 | $2 | $12 | 13.1 | 11 |
| 17 | OpenAI GPT-5.4 Pro | OpenAI | Proprietary | 1.05M | 58.9 | $30 | $180 | 0.87 | — |
| 18 | Anthropic Claude Opus 4.7 | Anthropic | Proprietary | 1M | 58.3 | $5 | $25 | 5.83 | 33 |
| 19 | Anthropic Claude Opus 4.6 | Anthropic | Proprietary | 1M | 58.2 | $5 | $25 | 5.82 | 19 |
| 20 | xAI Grok 4.6 | xAI | Proprietary | 500K | 56.9 | $2 | $6 | 19 | — |
| 21 | Proprietary | 1.05M | 56.7 | $2 | $12 | 12.6 | — | ||
| 22 | Proprietary | — | 56.5 | — | — | — | — | ||
| 23 | xAI Grok 4.5 | xAI | Proprietary | 500K | 55.0 | $2 | $6 | 18.3 | 4 |
| 24 | Meta | Proprietary | 1.05M | 54.8 | $1.25 | $4.25 | 27.4 | — | |
| 25 | Proprietary | — | 54.8 | — | — | — | 1 | ||
| 26 | Anthropic Claude Sonnet 5 | Anthropic | Proprietary | 1M | 54.6 | $2 | $10 | 13.7 | — |
| 27 | OpenAI GPT-5.6 Luna | OpenAI | Proprietary | 1.05M | 54.6 | $0.20 | $1.20 | 121 | 12 |
| 28 | Proprietary | 1.05M | 54.2 | $1.50 | $9 | 16.1 | — | ||
| 29 | Proprietary | 1.05M | 54.1 | $0.75 | $3.75 | 36.1 | — | ||
| 30 | OpenAI GPT-5.2 | OpenAI | Proprietary | 400K | 54.1 | $1.75 | $14 | 11.2 | 15 |
| 31 | OpenAI GPT-6 Luna | OpenAI | Proprietary | 1.05M | 53.3 | $0.10 | $0.50 | 266 | — |
| 32 | xAI Grok 4.7 | xAI | Proprietary | 500K | 53.1 | $2 | $6 | 17.7 | — |
| 33 | OpenAI GPT-5.2 Pro | OpenAI | Proprietary | 400K | 52.3 | $21 | $168 | 0.91 | — |
| 34 | Proprietary | 1.05M | 52.3 | $0.50 | $3 | 46.5 | — | ||
| 35 | OpenAI GPT-5 | OpenAI | Proprietary | 400K | 50.9 | $1.25 | $10 | 14.8 | 2 |
| 36 | Meta | Proprietary | — | 50.6 | — | — | — | — | |
| 37 | Anthropic Claude Opus 4.5 | Anthropic | Proprietary | 200K | 50.5 | $5 | $25 | 5.05 | 13 |
| 38 | Meta | Proprietary | 1.05M | 50.3 | $1.25 | $4.25 | 25.2 | — | |
| 39 | Anthropic Claude Sonnet 4.6 | Anthropic | Proprietary | 1M | 50.3 | $3 | $15 | 8.38 | — |
| 40 | 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 | OpenAI GPT-5.1 | OpenAI | Proprietary | 400K | 49.0 | $1.25 | $10 | 14.3 | — |
| 43 | xAI Grok 4.20 (Non-Reasoning) | xAI | Proprietary | 1M | 48.6 | $1.25 | $2.50 | 31.1 | 61 |
| 44 | xAI Grok 4 | xAI | Proprietary | — | 48.1 | — | — | — | 1 |
| 45 | OpenAI o3 | OpenAI | Proprietary | 200K | 47.5 | $2 | $8 | 13.6 | 3 |
| 46 | Thinking Machines Lab Inkling-Small | Thinking Machines Lab | Open | 524K | 46.5 | $0.45 | $1.20 | 72.9 | — |
| 47 | OpenAI GPT-5 Pro | OpenAI | Proprietary | 400K | 46.4 | $15 | $120 | 1.12 | 5 |
| 48 | xAI Grok 4.20 Multi-Agent | xAI | Proprietary | 1M | 46.2 | $1.25 | $2.50 | 29.6 | — |
| 49 | OpenAI GPT-5.3 Codex | OpenAI | Proprietary | 400K | 45.8 | $1.75 | $14 | 9.52 | — |
| 50 | Proprietary | 1.05M | 45.0 | $1.25 | $10 | 13.1 | 5 | ||
| 51 | OpenAI GPT-5.4 mini | OpenAI | Proprietary | 400K | 45.0 | $0.75 | $4.50 | 26.6 | 10 |
| 52 | Amazon Amazon Nova Experimental Chat 26 02 10 | Amazon | Proprietary | — | 44.5 | — | — | — | — |
| 53 | Thinking Machines Lab Inkling | Thinking Machines Lab | Open | 66K | 44.1 | $1.87 | $4.68 | 17.1 | — |
| 54 | Anthropic Claude Sonnet 4.5 | Anthropic | Proprietary | 200K | 44.1 | $3 | $15 | 7.35 | 85 |
| 55 | OpenAI Chatgpt 4o Latest 20250326 | OpenAI | Proprietary | — | 43.8 | — | — | — | 21 |
| 56 | xAI Grok 4.3 | xAI | Proprietary | 1M | 43.8 | $1.25 | $2.50 | 28 | — |
| 57 | Open | 262K | 43.5 | $0.09 | $0.34 | 286 | 3 | ||
| 58 | Open | 262K | 43.5 | $0.0675 | $0.23 | 407 | — | ||
| 59 | Anthropic Claude Opus 4 | Anthropic | Proprietary | 200K | 43.1 | $15 | $75 | 1.44 | 29 |
| 60 | Amazon Amazon Nova Experimental Chat 11 10 | Amazon | Proprietary | — | 43.0 | — | — | — | — |
| 61 | Amazon Amazon Nova Experimental Chat 12 10 | Amazon | Proprietary | — | 42.9 | — | — | — | — |
| 62 | OpenAI o3-pro | OpenAI | Proprietary | 200K | 42.9 | $20 | $80 | 1.23 | 1 |
| 63 | Amazon Amazon Nova Experimental Chat 26 01 10 | Amazon | Proprietary | — | 42.8 | — | — | — | — |
| 64 | OpenAI GPT-5.3 Chat | OpenAI | Proprietary | 128K | 42.8 | $1.75 | $14 | 8.88 | — |
| 65 | OpenAI GPT-5.5 Instant | OpenAI | Proprietary | — | 42.7 | — | — | — | — |
| 66 | OpenAI GPT-5.2 Codex | OpenAI | Proprietary | 400K | 42.6 | $1.75 | $14 | 8.84 | — |
| 67 | NVIDIA | Open | 262K | 42.5 | $0.50 | $2.20 | 45.9 | — | |
| 68 | Amazon Amazon Nova Experimental Chat 10 20 | Amazon | Proprietary | — | 42.1 | — | — | — | — |
| 69 | OpenAI GPT-5.4 nano | OpenAI | Proprietary | 400K | 41.9 | $0.20 | $1.25 | 90.6 | 19 |
| 70 | Amazon Amazon Nova Experimental Chat 10 09 | Amazon | Proprietary | — | 41.9 | — | — | — | — |
| 71 | OpenAI GPT-5 Mini | OpenAI | Proprietary | 400K | 41.8 | $0.25 | $2 | 60.9 | 3 |
| 72 | IBM Granite 4.2 30b | IBM | Open | — | 41.8 | — | — | — | — |
| 73 | Meta | Open | — | 41.7 | — | — | — | — | |
| 74 | OpenAI o4-mini | OpenAI | Proprietary | 200K | 41.6 | $1.10 | $4.40 | 21.6 | 6 |
| 75 | Proprietary | 1.05M | 41.5 | $0.30 | $2.50 | 48.8 | — | ||
| 76 | xAI Grok 4.1 | xAI | Proprietary | — | 41.5 | — | — | — | — |
| 77 | xAI Grok 4.1 Fast | xAI | Proprietary | 128K | 41.4 | $0.20 | $0.50 | 150 | — |
| 78 | xAI Grok-3 mini | xAI | Proprietary | — | 41.2 | — | — | — | 10 |
| 79 | Anthropic Claude Opus 4.1 | Anthropic | Proprietary | 200K | 41.0 | $15 | $75 | 1.37 | — |
| 80 | OpenAI o1 | OpenAI | Proprietary | 200K | 40.9 | $15 | $60 | 1.56 | — |
| 81 | Proprietary | 1.05M | 40.8 | $0.25 | $1.50 | 72.5 | 10 | ||
| 82 | Anthropic Claude Sonnet 4 | Anthropic | Proprietary | 200K | 40.8 | $3 | $15 | 6.79 | 31 |
| 83 | NVIDIA | Open | 262K | 40.6 | $0.05 | $0.20 | 464 | — | |
| 84 | IBM Granite 4.2 8B | IBM | Open | 131K | 40.5 | $0.06 | $0.25 | 377 | — |
| 85 | NVIDIA | Open | 131K | 40.3 | $0.40 | $0.40 | 101 | — | |
| 86 | NVIDIA | Open | 262K | 40.1 | $0.08 | $0.45 | 233 | — | |
| 87 | NVIDIA | Open | — | 40.1 | — | — | — | — | |
| 88 | NVIDIA | Open | 262K | 40.0 | $0.05 | $0.20 | 457 | — | |
| 89 | xAI Grok 3 | xAI | Proprietary | — | 39.9 | — | — | — | 42 |
| 90 | Amazon Nova 2 Lite | Amazon | Proprietary | 1M | 39.7 | $0.30 | $2.50 | 46.7 | — |
| 91 | Anthropic Claude 3.7 Sonnet | Anthropic | Proprietary | — | 39.5 | — | — | — | — |
| 92 | Anthropic Claude Haiku 4.5 | Anthropic | Proprietary | 200K | 39.5 | $1 | $5 | 19.8 | — |
| 93 | xAI Grok 4 Fast | xAI | Proprietary | — | 39.4 | — | — | — | 577 |
| 94 | Allen Institute for AI (Ai2) | Open | — | 39.4 | — | — | — | — | |
| 95 | IBM Granite 4.2 3b | IBM | Open | — | 39.4 | — | — | — | — |
| 96 | Proprietary | 1.05M | 39.3 | $0.30 | $2.50 | 46.2 | 152 | ||
| 97 | Proprietary | — | 39.1 | — | — | — | — | ||
| 98 | Allen Institute for AI (Ai2) | Open | — | 39.1 | — | — | — | — | |
| 99 | Inception Mercury 2 | Inception | Proprietary | 128K | 39.1 | $0.25 | $0.75 | 104 | — |
| 100 | Allen Institute for AI (Ai2) | Open | — | 38.7 | — | — | — | — | |
| 101 | Arcee AI | Open | 262K | 38.6 | $0.25 | $0.80 | 99.7 | — | |
| 102 | OpenAI GPT-5.1-Codex | OpenAI | Proprietary | 400K | 38.6 | $1.25 | $10 | 11.2 | — |
| 103 | Perplexity | Proprietary | 128K | 38.5 | $1 | $1 | 38.5 | — | |
| 104 | Amazon Nova Premier 1.0 | Amazon | Proprietary | 1M | 38.3 | $2.50 | $12.50 | 7.67 | 9 |
| 105 | Allen Institute for AI (Ai2) | Open | — | 37.9 | — | — | — | — | |
| 106 | OpenAI GPT-5-Codex | OpenAI | Proprietary | 400K | 37.9 | $1.25 | $10 | 11 | 95 |
| 107 | Proprietary | — | 37.8 | — | — | — | — | ||
| 108 | Proprietary | — | 37.7 | — | — | — | — | ||
| 109 | xAI Grok 2 Mini 2024 08 13 | xAI | Proprietary | — | 37.7 | — | — | — | — |
| 110 | Inception Mercury | Inception | Proprietary | — | 37.6 | — | — | — | 35 |
| 111 | NVIDIA | Open | — | 37.6 | — | — | — | — | |
| 112 | IBM Granite 4.1 8b | IBM | Open | — | 37.4 | — | — | — | — |
| 113 | Open | — | 37.3 | — | — | — | 13 | ||
| 114 | OpenAI GPT-4.5 | OpenAI | Proprietary | — | 37.2 | — | — | — | — |
| 115 | Proprietary | 1.05M | 37.0 | $0.10 | $0.40 | 211 | 172 | ||
| 116 | OpenAI o3-mini | OpenAI | Proprietary | 200K | 36.7 | $1.10 | $4.40 | 19.1 | — |
| 117 | NVIDIA | Open | — | 36.7 | — | — | — | — | |
| 118 | IBM Granite 4.0 H Small | IBM | Open | — | 36.5 | — | — | — | — |
| 119 | xAI Grok Build 0.1 | xAI | Proprietary | 256K | 36.4 | $1 | $2 | 29.1 | — |
| 120 | OpenAI gpt-oss-120b | OpenAI | Open | 131K | 36.3 | $0.037 | $0.17 | 517 | 55 |
| 121 | OpenAI GPT-4.1 | OpenAI | Proprietary | 1.05M | 35.9 | $2 | $8 | 10.3 | 116 |
| 122 | NVIDIA | Open | — | 35.9 | — | — | — | — | |
| 123 | NVIDIA | Open | — | 35.9 | — | — | — | — | |
| 124 | Allen Institute for AI (Ai2) | Open | — | 35.7 | — | — | — | — | |
| 125 | Proprietary | — | 35.1 | — | — | — | 92 | ||
| 126 | Anthropic Claude 3.5 Sonnet | Anthropic | Proprietary | — | 34.6 | — | — | — | — |
| 127 | OpenAI o1-mini | OpenAI | Proprietary | — | 34.0 | — | — | — | — |
| 128 | Meta | Open | — | 33.7 | — | — | — | — | |
| 129 | xAI Grok-2 (Dec 2024) | xAI | Proprietary | — | 33.7 | — | — | — | — |
| 130 | OpenAI GPT-4.1 mini | OpenAI | Proprietary | 1.05M | 33.6 | $0.40 | $1.60 | 48.1 | 86 |
| 131 | OpenAI GPT-5 Nano | OpenAI | Proprietary | 400K | 33.5 | $0.05 | $0.40 | 244 | 4 |
| 132 | Inception Mercury 2.5 | Inception | Proprietary | 260K | 33.5 | $0.04 | $0.15 | 496 | — |
| 133 | Amazon Nova 2.0 Pro Preview | Amazon | Proprietary | — | 33.4 | — | — | — | — |
| 134 | Proprietary | — | 33.2 | — | — | — | — | ||
| 135 | IBM Granite 3.1 2b Instruct | IBM | Open | — | 33.2 | — | — | — | — |
| 136 | Open | — | 33.1 | — | — | — | — | ||
| 137 | Microsoft | Open | — | 33.0 | — | — | — | — | |
| 138 | Microsoft | Open | — | 33.0 | — | — | — | — | |
| 139 | Allen Institute for AI (Ai2) | Open | — | 33.0 | — | — | — | — | |
| 140 | Allen Institute for AI (Ai2) | Open | — | 32.7 | — | — | — | — | |
| 141 | OpenAI gpt-oss-20b | OpenAI | Open | 131K | 32.5 | $0.018 | $0.09 | 903 | 96 |
| 142 | Poolside | Open | 262K | 32.5 | — | — | — | — | |
| 143 | IBM Granite 3.1 8b Instruct | IBM | Open | — | 32.4 | — | — | — | — |
| 144 | Proprietary | — | 32.1 | — | — | — | — | ||
| 145 | Open | 131K | 32.1 | $0.05 | $0.15 | 428 | — | ||
| 146 | Amazon Amazon Nova Lite | Amazon | Proprietary | 300K | 31.9 | $0.06 | $0.24 | 304 | — |
| 147 | NVIDIA | Open | — | 31.8 | — | — | — | — | |
| 148 | IBM Granite 3.0 8b Instruct | IBM | Open | — | 31.6 | — | — | — | — |
| 149 | OpenAI o1-pro | OpenAI | Proprietary | 200K | 31.5 | $150 | $600 | 0.12 | — |
| 150 | Microsoft | Open | — | 31.4 | — | — | — | — | |
| 151 | Microsoft | Open | — | 31.3 | — | — | — | — | |
| 152 | Open | — | 31.3 | — | — | — | — | ||
| 153 | Microsoft | Open | 128K | 31.2 | $0.07 | $0.14 | 357 | — | |
| 154 | Amazon Amazon Nova Pro | Amazon | Proprietary | 300K | 31.0 | $0.80 | $3.20 | 22.1 | — |
| 155 | Meta | Open | 128K | 30.9 | $0.19 | $0.65 | 102 | 456 | |
| 156 | Microsoft | Open | 128K | 30.9 | $0.075 | $0.30 | 235 | — | |
| 157 | Open | 131K | 30.8 | $0.08 | $0.16 | 308 | 62 | ||
| 158 | IBM Granite 3.0 2b Instruct | IBM | Open | — | 30.8 | — | — | — | — |
| 159 | Meta | Open | — | 30.8 | — | — | — | — | |
| 160 | Meta | Open | — | 30.7 | — | — | — | 78 | |
| 161 | Meta | Open | 128K | 30.6 | $0.10 | $0.32 | 197 | — | |
| 162 | OpenAI GPT-4 Turbo | OpenAI | Proprietary | 128K | 30.5 | $10 | $30 | 2.03 | — |
| 163 | Amazon Amazon Nova Micro | Amazon | Proprietary | 128K | 30.4 | $0.035 | $0.14 | 496 | — |
| 164 | Allen Institute for AI (Ai2) | Open | — | 30.3 | — | — | — | — | |
| 165 | Proprietary | — | 30.0 | — | — | — | — | ||
| 166 | Open | — | 30.0 | — | — | — | — | ||
| 167 | Proprietary | — | 29.9 | — | — | — | — | ||
| 168 | Allen Institute for AI (Ai2) | Open | — | 29.7 | — | — | — | — | |
| 169 | Microsoft | Open | — | 29.7 | — | — | — | — | |
| 170 | Microsoft | Open | — | 29.7 | — | — | — | — | |
| 171 | Open | — | 29.6 | — | — | — | — | ||
| 172 | Meta | Open | 128K | 29.6 | $0.40 | $0.40 | 74.1 | — | |
| 173 | Meta | Open | — | 29.6 | — | — | — | — | |
| 174 | Anthropic Claude 3 Opus | Anthropic | Proprietary | — | 29.5 | — | — | — | — |
| 175 | Databricks | Open | — | 29.4 | — | — | — | — | |
| 176 | Open | 8K | 29.4 | $0.65 | $0.65 | 45.2 | — | ||
| 177 | Open | — | 29.3 | — | — | — | — | ||
| 178 | Microsoft | Open | — | 29.3 | — | — | — | — | |
| 179 | Anthropic Claude 3.5 Haiku | Anthropic | Proprietary | — | 29.2 | — | — | — | — |
| 180 | OpenAI GPT-4 | OpenAI | Proprietary | 8K | 29.1 | $30 | $60 | 0.78 | — |
| 181 | Meta | Open | — | 29.1 | — | — | — | — | |
| 182 | IBM Granite 4.0 Micro | IBM | Open | 131K | 29.0 | $0.017 | $0.11 | 713 | — |
| 183 | Anthropic Claude 3 Sonnet | Anthropic | Proprietary | — | 29.0 | — | — | — | — |
| 184 | Meta | Open | 131K | 28.9 | $0.05 | $0.33 | 241 | — | |
| 185 | Meta | Open | — | 28.8 | — | — | — | 104 | |
| 186 | OpenAI GPT-4o | OpenAI | Proprietary | 128K | 28.6 | $2.50 | $10 | 6.53 | — |
| 187 | Open | 131K | 28.1 | $0.04 | $0.08 | 563 | 72 | ||
| 188 | OpenAI GPT-4.1 nano | OpenAI | Proprietary | 1.05M | 27.9 | $0.10 | $0.40 | 159 | 135 |
| 189 | Microsoft | Open | — | 27.9 | — | — | — | — | |
| 190 | Meta | Open | 128K | 27.7 | $0.10 | $0.30 | 184 | 272 | |
| 191 | Meta | Open | — | 27.5 | — | — | — | — | |
| 192 | Proprietary | — | 27.3 | — | — | — | — | ||
| 193 | Anthropic Claude 3 Haiku | Anthropic | Proprietary | — | 25.9 | — | — | — | 41 |
| 194 | Open | — | 25.9 | — | — | — | — | ||
| 195 | Databricks | Open | — | 25.5 | — | — | — | — | |
| 196 | OpenAI GPT-4o mini | OpenAI | Proprietary | 128K | 25.5 | $0.15 | $0.60 | 97.2 | 120 |
| 197 | Meta | Open | — | 25.5 | — | — | — | — | |
| 198 | Anthropic Claude 2.1 | Anthropic | Proprietary | — | 25.2 | — | — | — | — |
| 199 | Anthropic Claude 2 | Anthropic | Proprietary | — | 25.0 | — | — | — | — |
| 200 | Meta | Open | — | 24.4 | — | — | — | — | |
| 201 | Meta | Open | — | 24.4 | — | — | — | — | |
| 202 | OpenAI GPT-3.5-turbo | OpenAI | Proprietary | 16K | 23.2 | $0.50 | $1.50 | 31 | — |
| 203 | Meta | Open | 128K | 23.0 | $0.05 | $0.08 | 400 | — | |
| 204 | Open | — | 21.1 | — | — | — | — | ||
| 205 | Meta | Open | 60K | 20.1 | $0.027 | $0.20 | 286 | — |
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Frequently asked questions
What is the best US-made AI model?
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.