Model profile
GPT-5.1 Codex Max
MaintenanceExtended output version of GPT-5.1 Codex for large codebases.
Everything you need to evaluate this model before wiring it into production.
This model remains in the public catalog, but Token101 has paused live routing while upstream availability is being restored.
gpt-5.1-codex-maxProvider
OpenAI
Launch status
Maintenance
Context window
1.0M
Prompt caching
Supported
API routing is pausedView Pricing
Capabilities
Check context size, supported modalities, and output limits before you integrate.
Context window
1.0M
Max output
65.5K
Input modalities
Text, Image
Output modalities
Text
Prompt caching
Supported