Models/OpenAI/GPT-5.1-Codex-Mini

GPT-5.1-Codex-Mini

Name: GPT-5.1-Codex-Mini API access
Brand: OpenAI

DEPRECATED

OpenAI · Proprietary · Released Nov 13, 2025 · openai/gpt-5.1-codex-mini

Compare Estimate cost

400K contextVisionToolsReasoningStructured outputPrompt caching

Available from 1 providerUSD / MTOK · VERIFIED 4 MINUTES AGO

EST. MONTHLY COSTclick a row for detail · click headers to sort

PROVIDER	INPUT	OUTPUT	CACHE	CONTEXT	QUANT	TTFT	TPS	UPTIME
Azure	$0.25	$2.00	$0.03	400K	—	3s	741 tok/s	100.0%

TTFT/TPS: median (P50) over trailing 72h · chat10k profile (~10K in / 200 out) · measured via OpenRouter routing · methodology v1.1 · measured 44 hours ago

Pricing variants · USD / MTok in / out

STANDARD

$0.25 / $2.00

per MTok in / out

CACHE READ $0.03WEB SEARCH $0.01 / search

About

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

Specifications

Context window400,000

Max output128,000

Modalities inimage, text

Modalities outtext

LicenseProprietary

ReleasedNov 13, 2025

TokenizerGPT

Deprecation2026-07-23

GPT-5.6 Luna Pro$0.10 / $0.60 GPT-5.6 Luna$0.10 / $0.60 GPT-5.6 Terra Pro$1.00 / $6.00 GPT-5.6 Terra$1.00 / $6.00

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GPT-5.1-Codex-Mini price and speed badge

[![GPT-5.1-Codex-Mini](https://modelindex.ai/badge/openai/gpt-5.1-codex-mini)](https://modelindex.ai/models/openai/gpt-5.1-codex-mini)

Sources

OpenRouter API4 minutes ago

AGGREGATOR

LiteLLM dataset4 minutes ago

AGGREGATOR

ModelIndex benchmarks44 hours ago

MEASURED

Verified 4 minutes ago · list prices, not negotiated rates.