OpenAI model
GPT-5.3 Instant
GPT-5.3 Instant is available through 1 provider and 1 concrete deployment tracked by ALLM.
openai/gpt-5.3-instant
Deployments
1
Providers
1
Max context
128K
Input from
—
GPT-5.3 Instant provider comparison
Pricing and compatibility are tracked per provider deployment, because the same model can expose different features depending on where it runs.
| Provider | Provider model ID | Mode | Region | Input | Output | Context | Tools |
|---|---|---|---|---|---|---|---|
| ChatGPT | gpt-5.3-instant | Responses | global | — | — | 128K | supported |
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