GPT-3.5 Turbo Instruct API Cost Calculator
Estimate your monthly API costs for GPT-3.5 Turbo Instruct from Openai.
Pricing per 1M tokens
Input
$1.50
Output
$2.00
4.1K context4.1K max outputStreaming
Pricing last verified: Mar 21, 2026
30-Day Price History
Solid line: input price · Dashed line: output price
Estimate Your Costs
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Cost Breakdown
Input cost/request$0.000750
Output cost/request$0.000600
Cost per request$0.001350
Daily cost (1,000 requests)$1.35
Monthly estimate$40.50
Annual estimate$486.00
Compare with Similar Models
| Model | Input/1M | Output/1M |
|---|---|---|
| GPT-4.1FINE-TUNING Openai | $3.00 | $0.7500 |
| GPT-3.5 Turbo (older v0613) Openai | $1.00 | $2.00 |
| GPT Audio Mini Openai | $0.6000 | $2.40 |
| GPT-5.4OUR Openai | $2.50 | $0.2500 |
| GPT-REALTIME Openai | $4.00 | $0.4000 |
Frequently Asked Questions
How much does GPT-3.5 Turbo Instruct cost per token?
GPT-3.5 Turbo Instruct is priced at $1.50 per 1M input tokens and $2.00 per 1M output tokens. Use the calculator above to estimate your monthly costs based on your usage volume.
What is the context window for GPT-3.5 Turbo Instruct?
GPT-3.5 Turbo Instruct has a context window of 4.1K tokens (4,095 tokens). The maximum output length is 4.1K tokens.
How does GPT-3.5 Turbo Instruct compare to similar models?
GPT-3.5 Turbo Instruct costs $1.50 input and $2.00 output per 1M tokens. GPT-5.4OUR is less expensive at $2.50 input and $0.2500 output per 1M tokens. See the "Compare with Similar Models" table above, or visit the GPT-5.4OUR page at /tools/cost-calculator/openai/gpt-5-4our.