GPT-5.3 Codex
unknownOpenAI · gpt-codex family
Coding-optimized GPT model for repository edits, reviews, and agentic software work
Limits
Context400,000
Input272,000
Output128,000
Modalities
Inputtext, image, pdf
Outputtext
Release info
Release2026-02-05
Last update2026-02-05
Knowledge cutoff2025-08-31
Provider offerings
Provider-specific prices and limits stay separate from canonical model facts.
| Provider | Provider model ID | Input | Output | Context | Output limit |
|---|---|---|---|---|---|
| FrogBot | gpt-5-3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Neon | gpt-5-3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Pioneer | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| AIHubMix | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| LLM Gateway | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| FreeModel | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Azure Cognitive Services | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Azure | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| OpenCode Zen | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| GitHub Copilot | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Vivgrid | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| OpenAI | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Abacus | gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| OpenRouter | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Kilo Gateway | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| OrcaRouter | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Cloudflare AI Gateway | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| FastRouter | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| ZenMux | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Poe | openai/gpt-5.3-codex | $1.6 / 1M | $13 / 1M | 400,000 | 128,000 |
| Vercel AI Gateway | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| Requesty | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
| NanoGPT | openai/gpt-5.3-codex | $1.75 / 1M | $14 / 1M | 400,000 | 128,000 |
Capabilities
Attachments
Yes
Reasoning
Yes
Tool calling
Yes
Structured output
Yes
Temperature
No