OpenAI › GPT-5.3 Codex › Pricing
GPT-5.3 Codex pricing
API list price by OpenAI · same on Azure, lab-openai, openai-media · checked Oct 23, 2026
$1.75 / $14per 1M tokens in / out
$0.17cache read · −90%
#139on OpenRouter by tokens · 30.9B / week
Price sheetper 1M tokens
| Input | $1.75 | list |
| Output | $14 | |
| Cache read | $0.17 | −90% vs input |
| Context · max output | 400K · 128K | tokens |
Where to buy4 providers · per 1M tokens
| Provider | Input | Output | Context |
|---|---|---|---|
| Azure | $1.75 | $14 | 400K |
| lab-openai | $1.75 | $14 | — |
| OpenAIlab | $1.75 | $14 | 400K |
| openai-media | $1.75 | $14 | — |
In OpenAI's line-upper 1M in / out
| GPT-4o (2024-11-20) | $2.50 / $10 | −9% |
| GPT-4o Transcribe Diarize | $2.50 / $10 | −9% |
| GPT-5.6 Terra | $2 / $12 | −6% |
| GPT-5.3 Codex | $1.75 / $14 | this model |
| GPT-5.2 (2025-12-11) | $1.75 / $14 | 0% |
| GPT-5.4 (2026-03-05) | $2.50 / $15 | +17% |
| GPT-4o (2024-05-13) | $5 / $15 | +56% |
Cheaper for the same workvs GPT-5.3 Codex at xhigh
| Claude Sonnet 5.5 max | -17% | score +72% | $5.46 |
| Gemini 4 Argon high | -17% | score +62% | $1.99 |
| GPT-6.1 Sol max | -17% | score +59% | $0.72 |
| Muse Spark 1.3 max | -58% | score +48% | $1.60 |
| GPT-6 Sol max | -17% | score +47% | $1.04 |
Pricing questions
How much does GPT-5.3 Codex cost?›
$1.75 per 1M input tokens and $14 per 1M output tokens on OpenAI's API and Azure, lab-openai, openai-media. Cached input is $0.17.
Is GPT-5.3 Codex free to use?›
There is no free API tier.
How much does prompt caching save?›
Cache reads cost $0.17 per 1M, 90% below the input price.
What is a cheaper alternative to GPT-5.3 Codex?›
Claude Sonnet 5.5 at max effort costs -17% per task with a score +72% on Humanity's Last Exam.