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openai

GPT 5.1 Codex Mini

Canonical id: openai/gpt-5.1-codex-mini · Context: 400K tokens

VisionTool callingJSON mode
Route this with model=auto

Price per 1M tokens

Input $0.25/M · Output $2/M

+ LLMRouter platform fee: 1% of provider cost (≈ $0.0025/M in · $0.02/M out) — billed as its own line, never blended into the price above.

Providers

ProviderContextInput $/MOutput $/M
openai (viewing) 400K $0.25/M $2/M

Served through openai's API — 0% additional markup beyond our 1% platform fee.

Capability profile

Reasoning●●○○○2/5
Coding●●○○○2/5
Quality●●○○○2/5

Derived from Artificial Analysis's licensed Intelligence/Coding Index — see the leaderboard for their full, independently measured scores. Source: Artificial Analysis.

API

curl https://api.llmrouter.sh/v1/chat/completions \
  -H "Authorization: Bearer llmr_sk_..." \
  -H "Content-Type: application/json" \
  -d '{"model": "gpt-5.1-codex-mini", "messages": [{"role": "user", "content": "Hello!"}]}'