Model

OpenRouter GPT-5.1-Codex

OpenRouter pricing data current as of 2026-09-03.

Pricing

default / 1M tokens

$1.25 input · $0.13 cached input · $10.00 output

Batch discount

Not published

Provider

OpenRouter

Family

gpt

Model ID

openai/gpt-5.1-codex

Availability

Deprecated

Access

OpenRouter

Supports

text · image

Context window

400,000

Max output

128,000

Coding agent cost calculator

Estimate output-heavy coding assistant usage where long generations can dominate cost.

Added to the model directory.

2026-09-03

Model details changed in the provider's documentation.

2026-09-03