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GPT-5.1 Codex Max

openai/gpt-5.1-codex-max

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

Input modalitiesT
Output modalitiesT
Source-linkedgpt-codexClosed weightsReleased 2025-11-13
Report data
Context window400K
Maximum output128K
Provider offers13
Knowledge cutoff2024-09-30
Capabilities

What this model supports

ReasoningYes
Tool callingYes
Structured outputYes
AttachmentsYes
Temperature controlNo
Open weightsNo
Creator
OpenAI
Family
gpt-codex
Modalities
Image, Text
License
Not documented
Release date
2025-11-13
Model ID
openai/gpt-5.1-codex-max
Market availability

Provider pricing

Report price →
Providers offering GPT-5.1 Codex Max
ProviderProvider model IDContextInput / 1MOutput / 1MCached / 1MFeaturesAll pricing
Poe logoPoeopenai/gpt-5.1-codex-max400K$1.1$9$0.11R T ·
View
{
  "cache_read": 0.11,
  "input": 1.1,
  "output": 9
}
Requesty logoRequestyopenai/gpt-5.1-codex-max400K$1.1$9$0.11R T S
View
{
  "cache_read": 0.11,
  "input": 1.1,
  "output": 9
}
Vivgrid logoVivgridgpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
DigitalOcean logoDigitalOceanopenai-gpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OrcaRouter logoOrcaRouteropenai/gpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Azure logoAzuregpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OpenCode Zen logoOpenCode Zengpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Kilo Gateway logoKilo Gatewayopenai/gpt-5.1-codex-max400K$1.25$10$0.125R T ·
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OpenRouter logoOpenRouteropenai/gpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Neon logoNeongpt-5-1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
OpenAI logoOpenAIgpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
Vercel AI Gateway logoVercel AI Gatewayopenai/gpt-5.1-codex-max400K$1.25$10$0.125R T S
View
{
  "cache_read": 0.125,
  "input": 1.25,
  "output": 10
}
NanoGPT logoNanoGPTopenai/gpt-5.1-codex-max400K$2.5$20R T S
View
{
  "input": 2.5,
  "output": 20
}
Evidence

Published benchmark results

Insufficient benchmark coverage. ModelBench does not infer a score from price, context size, or model name.