OpenAI: GPT-5.3 Chat
OpenAI
OpenAI: GPT-5.3 Chat by OpenAI costs $1.75 per 1M input tokens and $14.00 per 1M output tokens, with a 128K-token context window.
Pricing
Input (per 1M tokens)
$1.75
Output (per 1M tokens)
$14.00
Cached input (per 1M)
$0.18
Specifications
- Provider
- OpenAI
- Context window
- 128K tokens
- Parameters
- —
- Released
- —
- Open weights
- —
- Frontier model
- No
Benchmarks
- LMArena (Chatbot Arena) Elohuman-preference
- 1387.9
Compare OpenAI: GPT-5.3 Chat with…
OpenAI: GPT-5.3 Chat vs OpenAI: GPT-5.2-Codex$14.00/1MOpenAI: GPT-5.3 Chat vs OpenAI: GPT-5.4 Image 2$15.00/1MOpenAI: GPT-5.3 Chat vs OpenAI: GPT-5.1 Chat$10.00/1MOpenAI: GPT-5.3 Chat vs OpenAI: GPT Chat Latest$30.00/1MOpenAI: GPT-5.3 Chat vs OpenAI: GPT-5.4 Nano$1.25/1MOpenAI: GPT-5.3 Chat vs OpenAI: GPT Audio$10.00/1M
FAQ
Pricing is per 1M tokens (USD); confirm with the provider before production use.