GPT-3.5 Turbo pricing and token costs
GPT-3.5 Turbo is a OpenAI model with a 16,385-token context window. Rates below are per million tokens, and are the ones in effect today.
Retiring. OpenAI removes this model on 2026-10-23. The named replacement is GPT-5.6 Terra.
Pricing
- Input, per 1M tokens
- $0.50
- Output, per 1M tokens
- $1.50
- Context window
- 16,385 tokens
- Tokenizer
- cl100k_base
Input and output combined.
Counted exactly, in your browser.
Alternatives
Articles that quote these figures
Common questions
- How much does GPT-3.5 Turbo cost per million tokens?
- $0.50 per million input tokens and $1.50 per million output tokens.
- What is the context window of GPT-3.5 Turbo?
- 16,385 tokens, covering input and output combined.
- Which tokenizer does GPT-3.5 Turbo use?
- GPT-3.5 Turbo uses the cl100k_base encoding. Counts are computed in your browser with the same tokenizer OpenAI publishes, so they are exact.
- Is GPT-3.5 Turbo being retired?
- OpenAI removes this model on 2026-10-23. The named replacement is GPT-5.6 Terra.
Figures come from OpenAI’s published list prices and are checked against every article on this site that quotes them at build time. They are still estimates of what a request costs — verify against your own billing before committing to them.