Model
GPT 5.3 Codex (Fast)
1 providers
$3.50
best input /M · Vercel AI Gateway
$28
best output /M
400K
context window
128K
max output
Compare providers (sorted by listed input price)
| Provider | Input /M | Output /M | Cache read /M | Cache write /M | Context | Capabilities | Status | Updated |
|---|---|---|---|---|---|---|---|---|
| Vercel AI Gateway openai/gpt-5.3-codex-fast | $3.50 | $28 | $0.35 | — | 400K | reasoningtoolsstructuredvision | Feb 5, 2026 |
Price badge
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Prices are per million tokens (USD). “—” means the provider does not publicly list a price for this model. Data from models.dev; verify with the provider before purchasing.