All modelsCalculate what your real prompts cost on GPT-5.3 Chat
GPT-5.3 Chat
OpenAI model, released 3 Mar 2026.
$1.75
per 1M input tokens
$14.00
per 1M output tokens
$0.175
per 1M cached-read tokens
Price history
Price stable since we started tracking (7 Jul 2026). History will chart here as soon as it moves.
Specifications
- Lab
- OpenAI
- Released
- 3 Mar 2026
- Context window
- 128k tokens
- Max output
- 16k tokens
- Input modalities
- text, image, file
- Output modalities
- text
- Knowledge cutoff
- —
- Open source
- No
Benchmarks
| Benchmark | Category | Score | As of |
|---|---|---|---|
| LMArena (Chatbot Arena) | coding | 1406.2 (1399–1413.4) | 12 Aug 2026 |
| LMArena (Chatbot Arena) | overall | 1387.6 (1383.3–1391.9) | 12 Aug 2026 |
LMArena (Chatbot Arena) data © their authors, CC-BY-4.0
Frequently asked questions
How much does GPT-5.3 Chat cost?
GPT-5.3 Chat costs $1.75 per 1M input tokens and $14.00 per 1M output tokens (list price, updated every 6 hours).
What is GPT-5.3 Chat's context window?
GPT-5.3 Chat supports a 128k-token context window with up to 16k output tokens.