PoeGPT-5.1-Codex model ID, context window & pricing
gpt-codex
Quick facts
Model ID openai/gpt-5.1-codex
Source Poe
Context Window 400000
Pricing $1.10 input / $9.00 output per 1M tokens
Capabilities tool calling, reasoning
Model overview
GPT-5.1-Codex is an AI model from Poe with 400000 token context window and text, image input support.
Published pricing is $1.10 input and $9.00 output per 1M tokens.
- Workloads that use text, image inputs with text outputs.
- Agent and tool workflows that need function calling.
- Reasoning-heavy prompts where stepwise problem solving matters.
Model ID openai/gpt-5.1-codex
Provider Poe
Family gpt-codex
Status -
Knowledge Cutoff -
Release Date 2025-11-12
Input Modalities text, image
Output Modalities text
Context Window 400000
Input Limit -
Output Limit 128000
Tool Calling Yes
Reasoning Yes
Structured Output -
Temperature Control No
Open Weights No
Input Cost / 1M tokens $1.10
Output Cost / 1M tokens $9.00
Reasoning Cost / 1M tokens -
Cache Read Cost / 1M tokens $0.11
Cache Write Cost / 1M tokens -