Best LLMs for Game Development — OpenAI
The best OpenAI model for game development is GPT-5.6 Sol, rated 1384 on Design Arena's game-dev board for playable games and game mechanics. GPT-5.5 (1339) and GPT-5.6 Terra (1291) round out the top three.
- 1
gpt-5.6-solReasoningToolsJSON+158.9 intel · $5.00/M · 51 t/s1384Elo - 2gpt-5.5ReasoningToolsJSON+154.8 intel · $5.00/M · 80 t/s1339Elo
- 3gpt-5.6-terraReasoningToolsJSON+155.0 intel · $1.00/M · 83 t/s1291Elo
- 4gpt-5.4ReasoningToolsJSON+151.4 intel · $2.50/M · 90 t/s1240Elo
- 5gpt-5.6-lunaReasoningToolsJSON+151.2 intel · $0.100/M · 111 t/s1234Elo
- 6gpt-5ReasoningToolsJSON+134.7 intel · $1.25/M · 65 t/s1231Elo
- 7gpt-5.1ReasoningToolsJSON+136.9 intel · $1.25/M · 60 t/s1224Elo
- 8gpt-5.3-codexReasoningToolsJSON+144.3 intel · $1.75/M · 61 t/s1206Elo
- 9gpt-5.1-codexReasoningToolsJSON+134.7 intel · $1.25/M · 63 t/s1184Elo
- 10gpt-5-miniReasoningToolsJSON+125.3 intel · $0.250/M · 93 t/s1174Elo
- 11gpt-5.1-codex-miniReasoningToolsJSON+130.6 intel · $0.250/M · 62 t/s1137Elo
- 12gpt-4.1ToolsJSONVision19.4 intel · $2.00/M · 64 t/s1124Elo
- 13gpt-4.1-miniToolsJSONVision14.8 intel · $0.400/M · 40 t/s1115Elo
- 14gpt-5-nanoReasoningToolsJSON+119.9 intel · $0.050/M · 98 t/s1090Elo
- 15gpt-oss-120bReasoningToolsJSON23.8 intel · $0.037/M · 624 t/s1038Elo
- 16gpt-4.1-nanoToolsJSONVision9.6 intel · $0.100/M · 48 t/s1015Elo
- 17gpt-4o-2024-11-20ToolsJSONVision11.2 intel · $2.50/M · 39 t/s951Elo
- 18gpt-4o-2024-08-06ToolsJSONVision9.6 intel · $2.50/M · 22 t/s951Elo
- 19gpt-4oToolsJSONVision11.2 intel · $2.50/M · 41 t/s951Elo
- 20gpt-4o-2024-05-13ToolsJSONVision8.6 intel · $5.00/M · 23 t/s951Elo
How this is ranked
AI models ranked by Design Arena Elo in the game-development category — building playable games and game mechanics, judged head-to-head by humans. Games are the hardest kind of generated code to fake: the result either runs and plays or it doesn't, which makes this ranking unusually honest about a model's ability to hold state, physics and a game loop together.
Frequently asked
What is the best OpenAI model for game development?
The best OpenAI model for game development is GPT-5.6 Sol, rated 1384 on Design Arena's game-dev board for playable games and game mechanics. GPT-5.5 (1339) and GPT-5.6 Terra (1291) round out the top three.
What's a good alternative to GPT-5.6 Sol?
GPT-5.5 (1339) is the closest alternative on this metric, followed by GPT-5.6 Terra (1291). See the full ranking above for the tradeoffs.
How many OpenAI models are there?
modelgrep tracks 60 OpenAI models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by GPT-5.6 Sol. 20 of them qualify for this ranking.