GPT-5.3-Codex (OpenAI)
View on OpenAIView on OpenRouterIdentity and capabilities
- Status
- Deprecated · retires Apr 1, 2027
- Recommended replacement
- gpt-6-sol
- Local execution
- Not verified
- Context window
- 400,000
- Maximum output
- 128,000
- Image input
- Yes
- Reasoning
- Yes
- Tool calling
- Yes
- Release date
- First seen
- 2026-08-29 19:40:01Z UTC
- Last verified
Current offers - prices in USD · per 1M tokens
| OpenRouter | OpenAI | |
|---|---|---|
| Standard | Deprecated · retires Apr 1, 2027 | |
| Cached input | $0.175 | $0.175 |
| Input | $1.75 | $1.75 |
| Output | $14 | $14 |
| Fast | Deprecated · retires Apr 1, 2027 | |
| Cached input | $0.35 | |
| Input | $3.5 | |
| Output | $28 |
Active promotions
No officially confirmed promotion applies to this model.
Recent price changes
- Effective price decreased · cause unverified
- Input: $3.5 → $1.75
- Output: $28.00 → $14.00