OpenAI: GPT-5.3-Codex
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...
Modalities
In / Out Price
$1.75 / $14 per 1M
Context
400K
Released
Feb 24, 2026
Knowledge Cutoff
—
Uptime
Share of successful requests per carrier, measured over the last 5 minutes, 30 minutes and day. When one carrier dips, the router fails over to the next.
Carriers
3
Best carrier, 30m
100.00%
Healthy now
3 / 3
| Provider | Status | Last 5m | Last 30m | Last day |
|---|---|---|---|---|
 Azure | Operational | — | 100.00% | 100.00% |
| OpenAI | Operational | 100.00% | 100.00% | 100.00% |
| OpenAI | Operational | — | — | — |