GPT-4o Search vs GPT-5.1
OpenAI vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 is cheaper ($1.25 vs $2.50 per 1M input)
- •GPT-5.1 has a larger context window (400K)
| GPT-4o Search | GPT-5.1 | |
|---|---|---|
| Intelligence index | — | 89 |
| Developer | OpenAI | OpenAI |
| Type | LLM | LLM |
| Access | API only | API only |
| Context window | 128,000 tokens | 400,000 tokens |
| Input price | $2.50 / 1M | $1.25 / 1M |
| Output price | $10.00 / 1M | $10.00 / 1M |
| Speed | — | 115 tok/s |
| Released | March 12, 2025 | November 12, 2025 |
| Parameters | — | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |