GPT-5.5 tops AI Intelligence Index with score above 60, beating Claude and Gemini
OpenAI's frontier model sets a new benchmark bar at 60+, leaving competitors behind.
Deep Dive
GPT-5.5, released April 23, remains the frontier version, scoring above 60 on the AI Intelligence Index. For a detailed benchmark comparison of how it compares to Claude and Gemini at every price tier, the Best AI Models April 2026: Ranked by Benchmarks report covers the full details.
Key Points
- GPT-5.5 scores above 60 on the AI Intelligence Index, a new comprehensive benchmark.
- Outperforms Claude and Gemini across all price tiers in head-to-head comparisons.
- Detailed benchmark ranking available in Best AI Models April 2026 report.
Why It Matters
Sets a new performance ceiling, forcing rivals to innovate faster and shifting enterprise adoption toward GPT-5.5.