Last updated: Oct 14, 2026 59 sources 20 endpoints monitored

gpt-5.1-codex-mini

1439 Score third-party Elo · arena.ai / LMArena ?

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

LLM & Generative AI 1 model 1 listings snapshot Oct 14, 2026, 12:43 AM

Platforms

click a card to open the detail table
Cheapest OpenRouter no official benchmark Input$0.250 Output$2.00 per 1M tokens Fastest OpenRouter lowest p50 latency on this board 128.1 ms p50 Most free quota — largest published free allowance — free tier

Model variants

W3r9 dedup — same model + identical tags merge; prices are listed per billing form
Model Provider Tags Input /1M Output /1M
openai/gpt-5.1-codex-mini OpenRouter 391k contextmultimodalreasoning $0.250 $2.00

Capabilities

official design_arena & architecture metadata

Design Arena Elo official design_arena benchmark (OpenRouter)

  • website 1113 · 42.9% wr
  • asciiart 1107 · 43.0% wr
  • dataviz 1098 · 40.6% wr
  • codecategories 1097 · 41.5% wr
  • gamedev 1097 · 43.4% wr
  • uicomponent 1083 · 41.0% wr
  • 3d 989 · 32.8% wr
  • svg 977 · 35.3% wr

Input / Output modalities modality: text+image->text

  • text in+out
  • image input only

Platform details

per provider
provider model Input /1M Output /1M Latency ? Official $/1M Availability Data time
OpenRouter openai/gpt-5.1-codex-mini $0.250 $2.00 128.1 ms — 100% available 2026-10-14 00:43:21

1 rows · snapshot 2026-10-14 00:43:21 · from data/public/prices.json + measurements.json