BERT vs GPT-5.1
Google vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has a larger context window (400K)
| BERT | GPT-5.1 | |
|---|---|---|
| Intelligence index | — | 89 |
| Developer | OpenAI | |
| Type | LLM | LLM |
| Access | Open weights | API only |
| Context window | 512 tokens | 400,000 tokens |
| Input price | — | $1.25 / 1M |
| Output price | — | $10.00 / 1M |
| Speed | — | 115 tok/s |
| Released | October 11, 2018 | November 12, 2025 |
| Parameters | 340M | — |
| Input modalities | Text | Text, Image |
| Output modalities | Text | Text |