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OpenAI: GPT-4o API Pricing
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of [GPT-4 Turbo](/models/openai/gpt-4-turbo) while being twice as...
How much does OpenAI: GPT-4o cost for a real workload?
At 10M input + 2M output tokens per month, OpenAI: GPT-4o costs about $45 ($25 input + $20 output). Try your own volumes in the cost calculator.
What is the official OpenAI: GPT-4o price?
| Official (openai) | Catalog (OpenRouter) | |
|---|---|---|
| Input /1M | $2.5 | $2.5 |
| Output /1M | $10 | $10 |
| Cached input /1M | $1.25 | $1.25 |
✓ Matches the official list price. Source: openai official pricing page, checked 2026-10-21.
What are cheaper alternatives to OpenAI: GPT-4o?
- MoonshotAI: Kimi K3 — $0.239 in / $11.94 out per 1M
- Google: Gemini 4 Argon — $2 in / $10 out per 1M
- OpenAI: GPT-6.1 Sol Pro — $2 in / $10 out per 1M
- OpenAI: GPT-6.1 Sol — $2 in / $10 out per 1M
- Anthropic: Claude Sonnet 5.5 — $2 in / $10 out per 1M
- OpenAI: GPT-6 Sol Pro — $2 in / $10 out per 1M
Compare OpenAI: GPT-4o with other models
OpenAI: GPT-4o vs OpenAI: gpt-oss-20bOpenAI: GPT-4o vs OpenAI: gpt-oss-20b (batch)OpenAI: GPT-4o vs OpenAI: gpt-oss-120b (batch)OpenAI: GPT-4o vs OpenAI: GPT-5 Nano (batch)OpenAI: GPT-4o vs OpenAI: GPT-4.1 Nano (batch)OpenAI: GPT-4o vs OpenAI: GPT-6 Luna Pro (batch)
Frequently asked questions
How much does OpenAI: GPT-4o cost?
OpenAI: GPT-4o costs $2.5 per 1M input tokens and $10 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $45.
What is the context window of OpenAI: GPT-4o?
OpenAI: GPT-4o has a context window of 128,000 tokens and can return up to 16,384 output tokens per response.
What are cheaper alternatives to OpenAI: GPT-4o?
Cheaper models include MoonshotAI: Kimi K3 ($0.239 in / $11.94 out), Google: Gemini 4 Argon ($2 in / $10 out), OpenAI: GPT-6.1 Sol Pro ($2 in / $10 out). See the full list on this page.
Is OpenAI: GPT-4o free to use?
No. OpenAI: GPT-4o is a paid model at $2.5 input / $10 output per 1M tokens. 20 free models are listed on the free models page.
What is the official price of OpenAI: GPT-4o?
On openai's official pricing page (checked 2026-10-21), OpenAI: GPT-4o is listed at $2.5 per 1M input tokens and $10 per 1M output tokens. The catalog price tracked on this page matches it exactly.
Provider: openai · Model ID: openai/gpt-4o · Modality: text+image+file->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices