GPT-4o mini Realtime vs GPT-5.1
OpenAI vs OpenAI — benchmarks, pricing, and capabilities side by side.
- •GPT-4o mini Realtime is cheaper ($0.00 vs $1.25 per 1M input)
| GPT-4o mini Realtime | GPT-5.1 | |
|---|---|---|
| Intelligence index | — | 89 |
| Developer | OpenAI | OpenAI |
| Type | LLM | LLM |
| Access | — | API only |
| Context window | — | 400,000 tokens |
| Input price | $0.00 / 1M | $1.25 / 1M |
| Output price | $0.00 / 1M | $10.00 / 1M |
| Speed | — | 115 tok/s |
| Released | December 17, 2024 | November 12, 2025 |
| Parameters | — | — |
| Input modalities | — | Text, Image |
| Output modalities | — | Text |