GPT-5.1-Codex vs R1 1776
OpenAI vs Perplexity — benchmarks, pricing, and capabilities side by side.
- •R1 1776 has the higher intelligence index (95.4 vs 88.2)
- •R1 1776 is cheaper ($0.00 vs $1.25 per 1M input)
| GPT-5.1-Codex | R1 1776 | |
|---|---|---|
| Intelligence index | 88.2 | 95.4 |
| Developer | OpenAI | Perplexity |
| Type | Multimodal | LLM |
| Access | API only | — |
| Context window | 400,000 tokens | — |
| Input price | $1.25 / 1M | $0.00 / 1M |
| Output price | $10.00 / 1M | $0.00 / 1M |
| Speed | 188 tok/s | — |
| Released | November 13, 2025 | February 18, 2025 |
| Parameters | — | — |
| Input modalities | Text, Image | — |
| Output modalities | Text | — |