OpenAIgpt-codex familyActive

GPT-5.1 Codex

Codex GPT for repository edits, code review, and practical software agents

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Context

400,000

Max output

272,000

Input / 1M

$1.07

Output / 1M

$8.50

Providers

01 Profile 02 Capabilities 03 Pricing 04 History 06 Related

01Profile

Profile

Released

2025-11-13

Last updated

2026-01

Knowledge cutoff

2024-09-30

Weights

Closed

02Capabilities

Capabilities

Input

text · image

Output

text

Reasoning

Yes

Tool calling

Yes

Structured output

Yes

Attachments

Yes

Cache read

—

Cache write

—

03Pricing

Pricing across 19 providers

Per 1M tokens, USD. Sorted by input price. First-party row highlighted.

Provider	Provider model id	Input	Output	Cache read	Context
opencode	gpt-5.1-codex	$1.07	$8.50	$0.11	400,000
poe	openai/gpt-5.1-codex	$1.10	$9.00	$0.11	400,000
jiekou	gpt-5.1-codex	$1.13	$9.00	Not listed	400,000
abacus	gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
aihubmix	gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
azure	gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
azure-cognitive-services	gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
edenai	azure/gpt-5.1-codex	$1.25	$10.00	$0.13	272,000
helicone	gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
impossibl	openai/gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
kilo	openai/gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
llmgateway	gpt-5.1-codex	$1.25	$10.00	$0.13	400,000

Show all 19 providers ↓

Provider	Provider model id	Input	Output	Cache read	Context
llmgateway-providers	azure/gpt-5.1-codex	$1.25	$10.00	Not listed	400,000
nano-gpt	openai/gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
openrouter	openai/gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
orcarouter	openai/gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
vercel	openai/gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
vivgrid	gpt-5.1-codex	$1.25	$10.00	$0.13	400,000
zenmux	openai/gpt-5.1-codex	$1.25	$10.00	$0.12	400,000

04History

Change history

12+ recent events since 2025-11-13

2026-08-20Addedllmgateway-providersoffering→ new

2026-08-14Removedcloudflare-ai-gatewayofferingremoved→ new

2026-08-14Addededenaioffering→ new

2026-08-04Removedrequestyofferingremoved→ new

2026-08-03Contextnano-gptContext window400,000→ new

2026-08-03Contextnano-gptMax output128,000→ new

2026-08-02Addedimpossibloffering→ new

2026-08-02ContextkiloContext window400,000→ new

2026-08-02ContextkiloMax output128,000→ new

2026-07-24Removedopenaiofferingremoved→ new

2026-06-06ContextvercelContext window400,000→ new

2026-06-06ContextvercelMax output128,000→ new

GPT-5.1 Codex

Profile

Capabilities

Pricing across 19 providers

Change history

Same family & alternatives