LLM API PRICING & BENCHMARK HUB

OpenAI o3: API Pricing, Benchmarks & Token Calculator

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Planning to build an AI agent or application with OpenAI o3 in 2026? Understanding your inference architecture budget is critical. At $2.00 per 1M input tokens and $8.00 per 1M output tokens, this model offers HumanEval coding performance suitable for General text generation and chat. Our interactive tool below allows you to model your exact inference architecture, adjusting for prompt caching and batching to find the highest unit economics for LLMs for your production requirements.

  • Input Cost:$2.00 / 1M tokens
  • Output Cost:$8.00 / 1M tokens
  • Context Window:200,000 tokens
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Compare o3 with Other AI Models

Jump straight into a head-to-head pricing view with o3 first in the comparison slug, matching how the rest of LeadsCalc orders model battles.

Frequently Asked Questions about o3

Short answers grounded in the catalog fields used by this calculator. Adjust assumptions in the tool above for your real traffic mix.

How does o3 performance compare to other models?

Based on our catalog benchmarks, o3 is evaluated across coding, logic, math, and instruction following. Use the performance radar chart above to see its exact strengths, or visit our comparison hub to see head-to-head win rates against models like GPT-4o and Claude 3.5 Sonnet.

What does o3 cost per million input and output tokens?

For OpenAI o3, this calculator uses $2.00 per 1M input tokens and $8.00 per 1M output tokens as baseline API pricing. Rates can vary by region, commitment tier, and batch endpoints—use the calculator above to stress-test your workload.

What context window does o3 support?

o3 is listed with a 200,000-token context window for a single request in our catalog. Very long prompts still increase cost linearly with tokens, so pair window size with caching and retrieval when possible.

Does o3 support vision or multimodal inputs?

o3 is listed here without vision; confirm multimodal support with your provider if you need images or PDFs.

How can I compare o3 with GPT-4o, Claude 3.5 Sonnet, or DeepSeek V3?

Use the comparison links in the section above for side-by-side pricing and context, or open the full comparison hub at https://www.leadscalc.com/calculators/ai/compare to explore more model pairs.

Who hosts the o3 API?

o3 is offered under OpenAI in this catalog. Wire your keys and endpoints per their docs; this page focuses on token economics, not account setup.