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OpenAI

GPT-5 Codex

openai/gpt-5-codex

Current Pricing

Calculate Cost

Input ($/1M)

$1.25

Output ($/1M)

$10.00

Cache Read ($/1M)

$0.1250

Web Search ($/call)

$0.0100

Last updated: Jul 14, 2026 · Source: openrouter_api

Specifications

Context Window

400K

Max Output

128K

Release Date

Sep 23, 2025

Modalities

textimage
Function Calling
Streaming
Batch
Structured Output