GPT-5-Codex

OpenAI · model · context window 400,000 tokens.

Pricing (per 1M tokens)

Input$1.25

Output$10.00

Cache read$0.1250

Specifications

Context window400,000 tokens

Max output128,000 tokens

Modalitiestext

VisionNo

Tool useYes

ReasoningNo

Prompt cachingNo

Estimate cost with GPT-5-Codex

GPT-5-Codex is pre-selected below. Enter your token counts and volume to see the cost per request, per day and per month — then switch models to compare.

Model

Input tokens(tokens)

Output tokens(tokens)

Results update automatically as you type.

Result

$0.00625 per request

~$187.50/month at 1,000 requests/day

Input cost: $0.00125
Output cost: $0.00500
Per request: $0.00625
Per day: $6.25
Per month: $187.50

Chatbot Cost Calculator Compare all models

Source: auto-discovery (models.dev). Prices are re-checked daily against the provider’s official pricing; this rate was last changed on 19 July 2026. A recent date here just means the price is still current, not that it moved.