# Model APIs and inference for AI agents (slim) > 8 model APIs & inference listings ranked by the Anchor benchmark. Leader OpenAI API (A). Frontier and open-weight model APIs, fast inference hardware and routers that sit in front of many providers. Compared on price, context, tool use, data handling and how often models get retired under you. - Full: https://www.anchorterminal.com/categories/inference.md (~5,350 tokens) · this version ~430 tokens · JSON https://www.anchorterminal.com/categories/inference.json · canonical https://www.anchorterminal.com/categories/inference - Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-04 - Tools: 8 · agent-ready (BB+): 5 · accept x402: 1 · JSON: https://www.anchorterminal.com/api/v1/tools.json · by capability: https://www.anchorterminal.com/api/v1/capabilities.json - Capabilities: inference.llm, inference.router, inference.fast, inference.open-weights | # | Tool | Grade | Score | Confidence | x402 | Auth | Where | Slim | | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 2 | OpenAI API | A | 82.8 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/openai-api.min.md | | 18 | Claude API | BB | 77.6 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/anthropic-api.min.md | | 31 | GroqCloud | BB | 75.7 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/groq.min.md | | 68 | BlockRun.AI | BB | 72.5 | medium | yes | OAuth or key | local | https://www.anchorterminal.com/tools/blockrun-ai.min.md | | 86 | Mistral AI API | BB | 71.3 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/mistral-api.min.md | | 119 | OpenRouter | B | 68.8 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/openrouter.min.md | | 223 | Gemini Developer API | B | 62 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/gemini-api.min.md | | 386 | DeepSeek API | D | 47.1 | medium | no | API key | hosted | https://www.anchorterminal.com/tools/deepseek-api.min.md |