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GPT-4o (Mar 2025)

OpenAIFrontier

GPT-4o (Mar 2025) by OpenAI costs — per 1M input tokens and — per 1M output tokens, with a —-token context window.

Pricing

Input (per 1M tokens)
—
Output (per 1M tokens)
—
Cached input (per 1M)
—

Specifications

Provider
OpenAI
Context window
—
Parameters
—
Released
Mar 2025
Open weights
No
Frontier model
Yes

Benchmarks

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FAQ

How much does GPT-4o (Mar 2025) cost?

GPT-4o (Mar 2025) is priced at — per 1M input tokens and — per 1M output tokens. Output tokens cost more than input.

What is GPT-4o (Mar 2025)'s context window?

GPT-4o (Mar 2025) supports a context window of — tokens — the maximum prompt plus response length it can handle in a single request.

Is GPT-4o (Mar 2025) open weight?

No — GPT-4o (Mar 2025) is a closed/proprietary model accessed via API.

Data as of 2026-10-16. Source: Epoch AI, Data on AI Models (CC BY 4.0), epoch.ai. Pricing is per 1M tokens (USD); confirm with the provider before production use.