Source-linked model comparison
OpenAI: GPT-5.5 Pro vs OpenAI: o3
This comparison shows retrieved facts only. API costs use each source's per-token prices for a 1,000-input / 500-output request.
OpenAI: GPT-5.5 Pro
- Provider
- openai
- Context window
- 1,050,000 tokens
- Input price
- $0.00003 per token
- Output price
- $0.00018 per token
- Example API cost
- $0.120000 per 1,000-input / 500-output request
- Source
- OpenRouter
OpenAI: o3
- Provider
- openai
- Context window
- 200,000 tokens
- Input price
- $0.000002 per token
- Output price
- $0.000008 per token
- Example API cost
- $0.006000 per 1,000-input / 500-output request
- Source
- OpenRouter