GPT-5.3-Codex API
Call GPT-5.3-Codex through Wokey and review dated catalog pricing, upstream-native API forms, context, and model capabilities.
- Model ID
gpt-5.3-codex- Vendors
- openai
- Supply status
- Currently callable
Catalog pricing snapshot
Prices are per 1M tokens; request-time pricing controls settlement.
| Meter | Wokey | Official reference | Savings |
|---|---|---|---|
| Input | $0.0875 | $1.75 | 95% |
| Output | $0.7 | $14 | 95% |
| Cache read | $0.00875 | $0.175 | 95% |
| Cache write | — | — | — |
Price checked:
Official price source: https://developers.openai.com/api/docs/models/gpt-5.3-codex
Model capabilities
- Context
- 400,000 tokens
- Max output
- 128,000 tokens
- Streaming
- Supported
- Tools
- Supported
- Vision
- Not supported
- Supported API forms
/v1/chat/completions·/v1/responses
Send a request
/v1/chat/completions
curl https://api.wokey.ai/v1/chat/completions \
-H "Authorization: Bearer $WOKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"gpt-5.3-codex","messages":[{"role":"user","content":"Hello"}]}'/v1/responses
curl https://api.wokey.ai/v1/responses \
+ -H "Authorization: Bearer $WOKEY_API_KEY" \
+ -H "Content-Type: application/json" \
+ -d '{"model":"gpt-5.3-codex","input":"Hello"}'Frequently asked questions
How much does the GPT-5.3-Codex API cost, and how much does it save versus the official API?
As of 2026-08-26, Wokey lists input at $0.0875 per 1M tokens and output at $0.7 per 1M tokens; the official references are $1.75 and $14. That is 95% lower for input and 95% lower for output. Request-time pricing controls settlement, and the vendor pricing source is linked on this page.
Which API forms does GPT-5.3-Codex support, and how do I call it through Wokey?
GPT-5.3-Codex supports /v1/chat/completions (Chat Completions requests) and /v1/responses (Responses requests). Set the API base URL to https://api.wokey.ai, authenticate with a Wokey API key, and use the canonical model ID gpt-5.3-codex; you can start with /v1/responses. The Send a request section includes a curl example for every supported API form.
What are the context window and maximum output for GPT-5.3-Codex?
The catalog context window is 400,000 tokens and the maximum output is 128,000 tokens. These are separate limits, and a request must also satisfy the upstream constraints in effect when it is processed.
How are cache reads and cache writes priced for GPT-5.3-Codex?
Cache read: Wokey lists $0.00875 per 1M tokens and the official reference is $0.175 per 1M tokens. Cache write: the vendor does not publish a separate meter, so Wokey also shows — as the public price.
Does GPT-5.3-Codex support streaming, tool calling, and image input?
Streaming is supported; tool calling is supported; image input is not supported. These values come directly from the current runtime model catalog and are not inferred from the model name.
Related models and documentation
Get API key · gpt-5.3-codex