gpt-3.5-turbo pricing
gpt-3.5-turbo from OpenAI costs $0.500 per 1M input tokens and $1.50 per 1M output tokens. Context window 16,385 tokens.
API id gpt-3.5-turbo · OpenAI · source · updated 2026-08-11
$0.500
Input / 1M tokens
$1.50
Output / 1M tokens
—
Cached input / 1M
16K
Context window
What gpt-3.5-turbo costs in practice
| Workload | Input tokens | Output tokens | Estimated cost |
|---|---|---|---|
| Short chat turn | 1,000 | 500 | $0.0013 |
| Document summary | 50,000 | 2,000 | $0.03 |
| 1M tokens in, 200K out | 1,000,000 | 200,000 | $0.80 |
Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.
Common questions
- How much does gpt-3.5-turbo cost per 1M tokens?
- gpt-3.5-turbo costs $0.500 per 1M input tokens and $1.50 per 1M output tokens on the standard tier.
- What is gpt-3.5-turbo's context window?
- gpt-3.5-turbo accepts up to 16,385 tokens in a single request, and can return up to 4,096 output tokens.
- Is there a cheaper OpenAI model than gpt-3.5-turbo?
- Yes. gpt-4o-mini-2024-07-18 is $0.300 per 1M input tokens versus $0.500 for gpt-3.5-turbo, with a 128,000 token context window.
- Where does this gpt-3.5-turbo price come from?
- Directly from OpenAI's published pricing page, re-read every day and normalized to USD per 1,000,000 tokens.