Neura Intelligence Index
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GPT-5.5
🇺🇸OpenAI2mo
Context:1.1M tokens
Input:$5/1M
Output:$30/1M
Neura Index
73.2
Rank #50—
highCategory Profile
Benchmark Scores (10)
reasoning
| Benchmark | Score | Source |
|---|---|---|
| GPQA Diamond | 93.6 | verified |
| ARC-AGI v2 | 85 | verified |
| Humanity's Last Exam | 52.2 | verified |
coding
| Benchmark | Score | Source |
|---|---|---|
| SWE-Bench Pro | 58.6 | verified |
multimodal
Performance History
Similar Models
Frequently Asked Questions about GPT-5.5
What is GPT-5.5's Neura Intelligence Index score?▾
GPT-5.5 by OpenAI scores 73.2 out of 100 on the Neura Intelligence Index, ranking #50 among tracked AI models. This composite score is computed from 10 individual benchmarks across coding, math, reasoning, and language categories.
How much does GPT-5.5 cost to use?▾
GPT-5.5 costs $5/1M input tokens and $30/1M output tokens via API. At a typical 3:1 input-to-output ratio with 1M tokens/day usage, the estimated monthly cost is approximately $338.
Is GPT-5.5 open source?▾
No, GPT-5.5 is a proprietary model by OpenAI. It is only accessible via their API.
What is GPT-5.5's context window?▾
GPT-5.5 supports a context window of 1.1 million tokens, allowing it to process very long documents, codebases, and conversations in a single request.
What benchmark does GPT-5.5 perform best on?▾
GPT-5.5 achieves its highest score on GPQA Diamond with a score of 93.6%. This benchmark evaluates 448 graduate-level science questions (biology, chemistry, physics) designed to be hard for non-experts.