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Game development: the best AI models in October 2026
As of Oct 09, 2026, Claude Opus 5.5 leads the “Game development” ranking, ahead of Claude Sonnet 5.5 and Claude Fable 5.1.
Best model with open weights: Kimi K3 (1,368).
Open in the interactive comparisonGame development ranking
Elo rating from head-to-head user votes on generated results. Not comparable with index points.
| Rank | Model | Licence | Elo | Input / output per 1M |
|---|---|---|---|---|
| 1 | Claude Opus 5.5Anthropic | Proprietary | 1,465 | $4.00 / $20.00 |
| 2 | Claude Sonnet 5.5Anthropic | Proprietary | 1,450 | $2.00 / $10.00 |
| 3 | Claude Fable 5.1Anthropic | Proprietary | 1,389 | $10.00 / $50.00 |
| 4 | GPT-6.1 SolOpenAI | Proprietary | 1,379 | $2.00 / $10.00 |
| 5 | Kimi K3Moonshot AI | Open | 1,368 | $0.82 / $13.50 |
| 6 | Muse Spark 1.3Meta | Proprietary | 1,353 | $1.25 / $4.25 |
| 7 | Claude Opus 5Anthropic | Proprietary | 1,346 | $5.00 / $25.00 |
| 8 | Claude Fable 5Anthropic | Proprietary | 1,343 | $10.00 / $50.00 |
| 9 | Gemini 3.7 FlashGoogle | Proprietary | 1,329 | $0.75 / $3.75 |
| 10 | GLM 5.3Z.ai | Open | 1,323 | $0.04 / $7.00 |
| 11 | MiMo-V2.6-ProXiaomi | Open | 1,320 | $0.435 / $0.87 |
| 12 | Gemini 3.8 FlashGoogle | Proprietary | 1,315 | $0.75 / $3.75 |
| 13 | Muse Spark 1.2Meta | Proprietary | 1,310 | $1.25 / $4.25 |
| 14 | Grok 4.7xAI | Proprietary | 1,307 | $2.00 / $6.00 |
| 15 | GPT-5.5OpenAI | Proprietary | 1,302 | $5.00 / $30.00 |