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...
Anyone in the Space can @-mention OpenAI: GPT-5.3-Codex with the team's shared context — pooled credits, one chat, one memory.
Specifications
- Provider
- openai
- Category
- llm
- Context length
- 400,000 tokens
- Max output
- 128,000 tokens
- Modalities
- text, image, file
- License
- proprietary
- Released
- 2026-02-24
Pricing
- Input
- $1.75/Mtok
- Output
- $14.00/Mtok
- Model ID
openai/gpt-5.3-codex
Per-token prices show what the model costs upstream. On Switchy your team draws from one shared org credit pool — one plan, one balance for everyone.
Team cost calculator
5 seats · 80 msgs/day
Switchy meters this against your org's shared credit pool — one plan, one balance for everyone.
Providers
| Provider | Context | Input | Output | P50 latency | Throughput | 30d uptime |
|---|---|---|---|---|---|---|
| openai | 400k | $1.75/Mtok | $14.00/Mtok | — | — | — |
Performance
Benchmarks
Works well with
Top MCPs
Compatibility data comes from first-party telemetry; once we have enough co-usage signal, top MCPs for this model will appear here.