Tested models
The five most used models on OpenRouter by tokens processed in the week ending October 31, 2026, keeping only the newest version of a model.
| Model | Lab | Slug | Exact version | ERC-8004 agent |
|---|---|---|---|---|
| DeepSeek V4.1 Flash 1017 | DeepSeek | deepseek-v4-1-flash-1017 |
deepseek/deepseek-v4.1-flash-20261017 |
#20431 |
| GLM 5.3 Flash | Z.ai | glm-5-3-flash |
z-ai/glm-5.3-flash-20260826 |
#20432 |
| GPT-6 Luna | OpenAI | gpt-6-luna |
openai/gpt-6-luna-20260922 |
#20433 |
| Hy4 Preview | Tencent | hy4-preview |
tencent/hy4-preview-20260827 |
#20434 |
| Claude Opus 5.5 | Anthropic | claude-opus-5-5 |
anthropic/claude-opus-5.5-20260921 |
#20435 |
Use the slug with the API, MCP server and SDK. For current scores, see the leaderboard or call /api/leaderboard.
A new model version is a new subject with its own score.