GPT-5.5 vs R1 1776
OpenAI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •R1 1776 has the higher intelligence index (95.4 vs 76.1)
- •R1 1776 is cheaper ($0.00 vs $5.00 per 1M input)
| GPT-5.5 | R1 1776 | |
|---|---|---|
| Intelligence index | 76.1 | 95.4 |
| Developer | OpenAI | Perplexity |
| Type | LLM | LLM |
| Access | API only | — |
| Context window | 1,050,000 tokens | — |
| Input price | $5.00 / 1M | $0.00 / 1M |
| Output price | $30.00 / 1M | $0.00 / 1M |
| Speed | 67 tok/s | — |
| Released | April 23, 2026 | February 18, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |