OpenRouter
Catalog quote- Input
- $1.75
- Output
- $14.00
- Cached input
- $0.175
openaiListed Feb 24, 2026
OpenAI: GPT-5.3-Codex
GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...
Context window400K
Max output128K
Provider endpoints5
Benchmark results0
Measured performance
All leaderboards ↗Benchmark results
No published results in this index yet
Scores appear here when an evaluation matches this exact model.
Access & cost
5 quotesPrices across providers
Your token mix
USD · listed token ratesExperiential
Standard list rate
- Input
- $1.75
- Output
- $14.00
- Cached input
- $0.175
Catalog list rate. Plan allowances and temporary discounts are separate.
- Input
- $1.75
- Output
- $14.00
- Cached input
- $0.175
Max prompt 272000 tokens · Web search $0.01/search
- Input
- $1.75
- Output
- $14.00
- Cached input
- $0.175
Max prompt 272000 tokens · Web search $0.01/search
- Input
- $3.50
- Output
- $28.00
- Cached input
- $0.35
Max prompt 272000 tokens · Web search $0.01/search
Model specifications
- Developer
- openai
- Modality
- Language
- Context
- 400,000 tokens
- Maximum output
- 128,000 tokens
- Weights
- Not reported
- Provider listed
- Feb 24, 2026
- First discovered
- Oct 16, 2026
Exact identities
- openrouter
openai/gpt-5.3-codex - experiential
gpt-5.3-codex
Sources
Updated Oct 18, 2026
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