OpenAIGPT-5.3-Codex API pricing

• Generally available February 24, 2026 source
• Deprecated October 1, 2026 source

GPT-5.3-Codex costs $1.75 per 1M input tokens and $14.00 per 1M output tokens on OpenAI's API, since February 24, 2026.

Launch price

GPT-5.3-Codex launched at this price on February 24, 2026.

Input

$1.75

Output

$14.00

Blended 3:1

$4.8125

Every price event

1 verified event, newest first. No price moves. Documented since February 24, 2026.

1. Launch price · February 24, 2026

   Rates from February 24, 2026

   Rate	Per 1M tokens
   Input	$1.75
   Cached input	$0.175
   Output	$14.00

   The 2026-02-23 19:18 UTC capture doesn't list gpt-5.3-codex; the 2026-02-24 22:28 UTC capture does.

   • Price: Archived page (developers.openai.com, captured February 24, 2026)
     quote

     Standard | Model | Input | Cached input | Output | gpt-5.3-codex | $1.75 | $0.175 | $14.00

   • Price: Pricing page (developers.openai.com)
     quote

     Codex | gpt-5.3-codex | $1.75 | $14.00 | $0.175

   • Date: Changelog (developers.openai.com)
     quote

     Feb 24 ... Released `gpt-5.3-codex` to the Responses API.

Gaps in this history

Batch: the model page lists v1/batch as not supported.

API ids

• gpt-5.3-codex

Checked October 28, 2026.