Openai
OpenAI: GPT-5.3-Codex
openai/gpt-5.3-codex
Score73
Add to CompareInput / M
Output / M
Context
Max Output
128K
Usage
Unranked
Quality
69.3 / 100
Providers
2
Best Uptime 30m
99.67%
Released
Feb 24, 2026
Modalities
text, image, file
About
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...
Capabilities
Vision
Tools
Reasoning
Streaming
JSON Mode
Providers · 2
Per-provider pricing, uptime
| Provider | Input/M | Output/M | Context | Max Out | Quant | Uptime 30m |
|---|---|---|---|---|---|---|
| OpenAIRecommended OpenAI | openai/gpt-5.3-codex-20260224 | $1.75 | $14.00 | 400K | 128K | unknown | 99.67% |
| Azure Azure | openai/gpt-5.3-codex-20260224 | $1.75 | $14.00 | 400K | 128K | unknown | — |
Benchmarks
Quality index 69.3 / 100
Design Arena
elo models gamedev
1226.0
elo models dataviz
1206.0
elo models website
1205.0
elo models asciiart
1196.0
elo models codecategories
1194.0
elo models uicomponent
1191.0
elo models svg
1186.0
elo models 3d
1086.0
Performance History
52 snapshots
Price History
0 recorded changes
No price changes recorded yet.
Usage (OpenRouter)
Historical usage
Activity Timeline
- No events yet.
Versus
Nearest peers by price, context, and capabilities. One click to compare.
No comparable models found.
First seen 3d ago · Last verified 6m ago