OnlySOTA

GPT 5.1 Codex mini

OpenAI closed 2025-11-13

Legacy

Killed

GPT 5.1 Codex mini is killed. The executioner, Claude Haiku 5.5, costs $0.20 and scores 43.4: no more expensive, no weaker. Choosing GPT 5.1 Codex mini means paying more for nothing.

Score
20.4 est.
Artificial Analysis Intelligence Index
Best rank
#130
Arena — Code
Price
$0.69
Blended Price, USD per 1M tokens (3:1 input:output)

No longer listed as current by its source, so this page shows only the verdict and its scores.

Scores on each board

Compare with the executioner, Claude Haiku 5.5 → See the current SOTA models →

Details
Family
GPT → GPT 5.1 → GPT 5.1 Codex
Blended Price, USD per 1M tokens (3:1 input:output)
$0.69
Sources
2 boards ·2 scores ·2 settings
Also written as
GPT-5.1 Codex minigpt-5-1-codex-minigpt-5.1-codex-miniGPT 5.1 Codex mini