o3 Deep Research API Cost Calculator
Estimate your monthly API costs for o3 Deep Research from Openai.
Pricing per 1M tokens
Pricing last verified: Mar 21, 2026
30-Day Price History
Solid line: input price · Dashed line: output price
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Cost Breakdown
Compare with Similar Models
| Model | Input/1M | Output/1M |
|---|---|---|
| GPT-4 Turbo (older v1106) Openai | $10.00 | $30.00 |
| GPT-4 Turbo Openai | $10.00 | $30.00 |
| GPT-4 Turbo Preview Openai | $10.00 | $30.00 |
| o1 Openai | $15.00 | $60.00 |
| GPT-4o (extended) Openai | $6.00 | $18.00 |
Frequently Asked Questions
How much does o3 Deep Research cost per token?
o3 Deep Research is priced at $10.00 per 1M input tokens and $40.00 per 1M output tokens. Use the calculator above to estimate your monthly costs based on your usage volume.
What is the context window for o3 Deep Research?
o3 Deep Research has a context window of 200K tokens (200,000 tokens). The maximum output length is 100K tokens.
Does o3 Deep Research support image inputs (vision)?
Yes, o3 Deep Research supports vision/image inputs. You can send images as part of your prompts.
Does o3 Deep Research support function calling (tool use)?
Yes, o3 Deep Research supports function calling (also called tool use). You can define custom functions that the model can invoke as part of its responses.
How does o3 Deep Research compare to similar models?
o3 Deep Research costs $10.00 input and $40.00 output per 1M tokens. GPT-4o (extended) is less expensive at $6.00 input and $18.00 output per 1M tokens. See the "Compare with Similar Models" table above, or visit the GPT-4o (extended) page at /tools/cost-calculator/openai/gpt-4o-extended.