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Compare/GPT-5.1 vs GPT-5.1 Codex Max

GPT-5.1 vs GPT-5.1 Codex Max

OpenAIActive

GPT-5.1

$1.07 / $8.50 · 400,000 ctx · 31 providers
OpenAIActive

GPT-5.1 Codex Max

$1.10 / $9.00 · 400,000 ctx · 13 providers
01Differences

At a glance

Computed automatically from tracked data.

• GPT-5.1's input price is 3% higher than GPT-5.1 Codex Max's ($1.07 vs $1.10 per 1M).
• GPT-5.1's output price is 6% higher than GPT-5.1 Codex Max's ($8.50 vs $9.00 per 1M).
02Specs

Side by side

GPT-5.1GPT-5.1 Codex Max
Input / 1M$1.07$1.10
Output / 1M$8.50$9.00
Context400,000400,000
Max output131,072128,000
Providers3113
Released2025-11-132025-11-13
03Prices

Common providers

ProviderGPT-5.1GPT-5.1 Codex Max
abacus$1.25 / $10.00$1.25 / $10.00
azure$1.25 / $10.00$1.25 / $10.00
edenai$1.25 / $10.00$1.25 / $10.00
jiekou$1.13 / $9.00$1.13 / $9.00
kilo$1.25 / $10.00$1.25 / $10.00
nano-gpt$1.25 / $10.00$2.50 / $20.00
ofox$1.25 / $10.00$1.25 / $10.00
opencode$1.07 / $8.50$1.25 / $10.00
openrouter$1.25 / $10.00$1.25 / $10.00
poe$1.10 / $9.00$1.10 / $9.00
vercel$1.25 / $10.00$1.25 / $10.00
04History

Recent changes

GPT-5.1
2026-09-02 — Context cortecs
2026-08-27 — Price up requesty
2026-08-27 — Price up requesty
2026-08-24 — Context cloudflare-ai-gateway
2026-08-20 — Added llmgateway-providers
GPT-5.1 Codex Max
2026-08-27 — Removed orcarouter
2026-08-14 — Added edenai
2026-08-06 — Added ofox
2026-08-05 — Removed neon
2026-08-04 — Removed requesty
as of 2026-09-16
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