GPT-5.5 Pro vs R1 1776
OpenAI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •R1 1776 is cheaper ($0.00 vs $30.00 per 1M input)
| GPT-5.5 Pro | R1 1776 | |
|---|---|---|
| Intelligence index | — | 95.4 |
| Developer | OpenAI | Perplexity |
| Type | Multimodal | LLM |
| Access | API only | — |
| Context window | 1,050,000 tokens | — |
| Input price | $30.00 / 1M | $0.00 / 1M |
| Output price | $180.00 / 1M | $0.00 / 1M |
| Speed | — | — |
| Released | April 24, 2026 | February 18, 2025 |
| Parameters | — | — |
| Input modalities | Image, Text | — |
| Output modalities | Text | — |