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GPT-5.1 Codex Max (Azure)

OpenAI · gpt-5-1-codex-max

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Coding-optimized GPT model for repository edits, reviews, and agentic software work

Specification

openai listing

Context
400K
Max output
128K
Released
2025-11-13
Knowledge cutoff
2024-09-30
Retires
2026-07-23
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · openai list price

Input
$1.25
Output
$10.00
Cache read
$0.125

Available from 16 hosts

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
openaivendor$1.25$10.00$0.125—400K128K2026-07-23
poe$1.10$9.00$0.11—400K128K—
jiekou$1.1875$9.50$0.1187—400K128K—
abacus$1.25$10.00——400K128K—
azure
$1.25
$1.375
$10.00
$11.00
$0.125
$0.1375
—
400K
272K
128K2027-05-18
azure-cognitive-services$1.25$10.00$0.125—400K128K—
edenai$1.25$10.00$0.125—272K128K—
kilo$1.25$10.00$0.125—400K128K—
ofox$1.25$10.00$0.13—256K128K—
opencode$1.25$10.00$0.125—400K128K—
openrouter$1.25$10.00$0.125—400K128K—
vercel$1.25$10.00$0.125—400K128K—
vivgrid$1.25$10.00$0.125—400K128K—
nano-gpt$2.50$20.00$0.25—400K128K—
aimlapi$2.645$21.16$0.2645—400K128K—
chatgpt · chatgpt————128K128K—

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02azureCache read$0.125
2026-09-17azureCache read$0.125
2026-09-02ofoxCache read$0.13
2026-09-19ofoxCache read$0.104
2026-10-17ofoxCache read$0.13
2026-09-02openaiCache read$0.125
2026-09-24openaiCache read$0.125
2026-09-02openrouterCache read$0.125
2026-10-10openrouterCache read$0.125
2026-09-02azureInput$1.25
2026-09-17azureInput$1.25
2026-09-02jiekouInput$1.125
2026-10-22jiekouInput$1.1875
2026-09-02ofoxInput$1.25
2026-09-19ofoxInput$1.00
2026-10-17ofoxInput$1.25
2026-09-02openaiInput$1.25
2026-09-24openaiInput$1.25
2026-09-02openrouterInput$1.25
2026-10-10openrouterInput$1.25
2026-09-02azureOutput$10.00
2026-09-17azureOutput$10.00
2026-09-02jiekouOutput$9.00
2026-10-22jiekouOutput$9.50
2026-09-02ofoxOutput$10.00
2026-09-19ofoxOutput$8.00
2026-10-17ofoxOutput$10.00
2026-09-02openaiOutput$10.00
2026-09-24openaiOutput$10.00
2026-09-02openrouterOutput$10.00
2026-10-10openrouterOutput$10.00
2026-10-13aimlapiCache read$0.3438
2026-10-23aimlapiCache read$0.2645
2026-10-13aimlapiInput$3.4385
2026-10-23aimlapiInput$2.645
2026-10-13aimlapiOutput$27.508
2026-10-23aimlapiOutput$21.16

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