GPT-5.1 vs Reka Flash
OpenAI vs Reka AI — benchmarks, pricing, and capabilities side by side.
- •GPT-5.1 has the higher intelligence index (89 vs 52.9)
- •Reka Flash is cheaper ($0.20 vs $1.25 per 1M input)
- •GPT-5.1 is faster
| GPT-5.1 | Reka Flash | |
|---|---|---|
| Intelligence index | 89 | 52.9 |
| Developer | OpenAI | Reka AI |
| Type | LLM | LLM |
| Access | API only | — |
| Context window | 400,000 tokens | — |
| Input price | $1.25 / 1M | $0.20 / 1M |
| Output price | $10.00 / 1M | $0.80 / 1M |
| Speed | 115 tok/s | 85 tok/s |
| Released | November 12, 2025 | October 4, 2024 |
| Parameters | — | — |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |