# GPT-5.5 vs MAI-Thinking-1

> Side-by-side benchmark comparison for GPT-5.5 and MAI-Thinking-1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-5-vs-mai-thinking-1
- Last updated: September 4, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick GPT-5.5 if you want the stronger benchmark profile. MAI-Thinking-1 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.5 leads overall 73.27 to 52.27.
- The clearest category separation is in knowledge, where the averages are 73.3 for GPT-5.5 and 53.3 for MAI-Thinking-1.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 82% and 46%.
- GPT-5.5 also has the larger context window at 1M.

## Model Snapshot

| Property | GPT-5.5 | MAI-Thinking-1 |
|----------|----------|----------|
| Creator | OpenAI | Microsoft |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Overall Score | 73.27 | 52.27 |
| Benchmarks Covered | 38 | 14 |
| Pricing (input/output) | $5.00 / $30.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Coming soon
- GPT-5.5 public-lane score: 63.9 (Supported · #15/151)
- MAI-Thinking-1 public-lane score: 51.7 (Estimated · #53/151)

| Benchmark | GPT-5.5 | MAI-Thinking-1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 82% | 46% | GPT-5.5 |
| CyberGym | 81.8% | Coming soon | Coming soon |
| BrowseComp | 84.4% | Coming soon | Coming soon |
| OSWorld-Verified | 78.7% | Coming soon | Coming soon |
| MCP Atlas | 75.3% | Coming soon | Coming soon |
| Toolathlon | 55.6% | Coming soon | Coming soon |
| τ²-bench results | 98% | Coming soon | Coming soon |
| Gert Labs | 72.93% | Coming soon | Coming soon |
| ResearchClawBench | 17.0% | Coming soon | Coming soon |
| OSWorld 2.0 | 13.0% | Coming soon | Coming soon |
| JobBench | 42.7% | Coming soon | Coming soon |
| ExploitGym | 13.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 76.4% | Coming soon | Coming soon |

### Coding

- Winner: Coming soon
- GPT-5.5 public-lane score: 67.7 (Supported · #8/183)
- MAI-Thinking-1 public-lane score: 51.8 (Estimated · #60/183)

| Benchmark | GPT-5.5 | MAI-Thinking-1 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 58.6% | 52.8% | GPT-5.5 |
| Terminal-Bench 2.0 | 82.0% | 46.0% | GPT-5.5 |
| Vibe Code Bench | 69.85% | Coming soon | Coming soon |
| React Native Evals | 84.7% | Coming soon | Coming soon |
| cursorBench31 | 59.2% | Coming soon | Coming soon |
| cursorBench32 | 58.4% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 43.0% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.3% | Coming soon | Coming soon |
| SWE-bench (Vals) | 82.6% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 87.7% | Coming soon |
| SWE-bench Verified | Coming soon | 73.5% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- GPT-5.5 public-lane score: 71.3 (#19/48)
- MAI-Thinking-1 public-lane score: Coming soon

| Benchmark | GPT-5.5 | MAI-Thinking-1 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 81.2% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 83.2% | Coming soon | Coming soon |
| OfficeQA Pro | 54.1% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- GPT-5.5 public-lane score: 63.5 (#15/22)
- MAI-Thinking-1 public-lane score: Coming soon

| Benchmark | GPT-5.5 | MAI-Thinking-1 | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 64K-128K | 83.1% | Coming soon | Coming soon |
| MRCR v2 128K-256K | 87.5% | Coming soon | Coming soon |
| ARC-AGI-2 | 85% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.4% | Coming soon | Coming soon |
| Graphwalks BFS 128K | Coming soon | 90% | Coming soon |

### Knowledge

- Winner: Coming soon
- GPT-5.5 public-lane score: 73.3 (Supported · #7/181)
- MAI-Thinking-1 public-lane score: 53.3 (Estimated · #68/181)

| Benchmark | GPT-5.5 | MAI-Thinking-1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.6% | 84.2% | GPT-5.5 |
| GPQA-D | 93.6% | 84.2% | GPT-5.5 |
| HLE | 52.2% | Coming soon | Coming soon |
| HLE w/o tools | 41.4% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 93.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 88.1% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 85% | Coming soon |
| SimpleQA | Coming soon | 31% | Coming soon |

### Instruction Following

- Winner: Coming soon
- GPT-5.5 public-lane score: 92.9 (#7/120)
- MAI-Thinking-1 public-lane score: 94.7 (#1/120)

| Benchmark | GPT-5.5 | MAI-Thinking-1 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 85% | Coming soon |

### Mathematics

- Winner: Coming soon
- GPT-5.5 public-lane score: 69.6 (Unranked · 3 rankable rows)
- MAI-Thinking-1 public-lane score: 73.4 (Unranked · 3 rankable rows)

| Benchmark | GPT-5.5 | MAI-Thinking-1 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 51.7% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 51.700% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 35.400% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 97% | Coming soon |
| AIME26 | Coming soon | 94.5% | Coming soon |
| HMMT Feb 2026 | Coming soon | 84.9% | Coming soon |

## FAQ

### Which is better overall, GPT-5.5 or MAI-Thinking-1?

GPT-5.5 is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-5.5 and MAI-Thinking-1?

The widest category gap is in knowledge, where the averages are 73.3 for GPT-5.5 and 53.3 for MAI-Thinking-1.

### How many benchmarks does GPT-5.5 cover on BenchLM?

GPT-5.5 currently has 38 sourced benchmark scores on BenchLM.

### How many benchmarks does MAI-Thinking-1 cover on BenchLM?

MAI-Thinking-1 currently has 14 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.5 vs GPT-5.5 Pro](/compare/gpt-5-5-vs-gpt-5-5-pro)
- [MAI-Thinking-1 vs GPT-5.5 Pro](/compare/gpt-5-5-pro-vs-mai-thinking-1)
- [GPT-5.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gpt-5-5)
- [MAI-Thinking-1 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mai-thinking-1)

## Explore More

- [GPT-5.5 profile](/models/gpt-5-5)
- [MAI-Thinking-1 profile](/models/mai-thinking-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)