Vercel AI Gateway
GPT 5.3 Codex (Fast)
Canonical ID:
vercel/openai/gpt-5.3-codex-fast
Coding-optimized GPT model for repository edits, reviews, and agentic software work
Overview
- Provider
-
Vercel AI Gateway
- Family
- gpt-codex
- Release date
- 2026-02-05
- Last updated
- 2026-02-05
- Input modalities
- text, image, pdf
- Output modalities
- text
Pricing and Limits
Token pricing
- Input
- $3.5/1M
- Output
- $28/1M
- Cached input
- N/A
Context and output
- Context window
- 400,000
- Max output tokens
- 128,000
- Qualified ID
- vercel/openai/gpt-5.3-codex-fast
Model Summary
GPT 5.3 Codex (Fast) is a model listing in the Vercel AI Gateway provider catalog. It is categorized under the gpt-codex family.
The model supports text, image, pdf modalities across input/output paths. Reported context capacity is 400,000. Pricing is listed at $3.5/1M input and $28/1M output.
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