Source-linked model comparison
OpenAI: GPT-5.1 vs OpenAI: GPT-5.5 Pro (batch)
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-5.1
- Provider
- openai
- Context window
- 400,000 tokens
- Input price
- $0.00000125 per token
- Output price
- $0.00001 per token
- Example API cost
- $0.006250 per 1,000-input / 500-output request
- Source
- OpenRouter
OpenAI: GPT-5.5 Pro (batch)
- Provider
- openai
- Context window
- 1,050,000 tokens
- Input price
- $0.000015 per token
- Output price
- $0.00009 per token
- Example API cost
- $0.060000 per 1,000-input / 500-output request
- Source
- OpenRouter