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Model Services/OpenAI/gpt-5.1-codex-mini
openai

gpt-5.1-codex-mini

Retired

No description yet.

Retired

The first-party endpoint is retired. Partner-channel availability is tracked separately.

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Input, output, and cached rates with source and verification time, plus same-workload cost examples.
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Input / 1M tokens
$0.25
Output / 1M tokens
$2.00
Record updated 2026-10-05
Modality:LLM
Context:400,000 tokens
Deprecation:Aug 19, 2026
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Pricing

Platform
Scope
Input
Output
Details
OpenRouter
Unified API Router
Standard
$0.25
$2.00
400k context · 128k max output

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Latest changes

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❓gpt-5.1-codex-mini Frequently Asked Questions

How much does gpt-5.1-codex-mini cost per 1M tokens?▼

gpt-5.1-codex-mini is priced at $0.25 per 1M input tokens and $2.00 per 1M output tokens, with cached input at $0.03/1M on openrouter. Check provider terms before deployment.

What is the context window for gpt-5.1-codex-mini?▼

gpt-5.1-codex-mini supports up to 400,000 tokens context with a max completion limit of 128,000 tokens.

What are cost-saving alternatives to gpt-5.1-codex-mini?▼

ModelPriceLab automatically calculates cheaper alternatives in the same model class, showing monthly spend differences and migration guides.

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