# MAI-Thinking-1 vs Mercury 2.5

> Side-by-side benchmark comparison for MAI-Thinking-1 and Mercury 2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mai-thinking-1-vs-mercury-2-5
- Last updated: September 8, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: MAI-Thinking-1 and Mercury 2.5 share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Mercury 2.5 has the larger published context window at 260K.

## Model Snapshot

| Property | MAI-Thinking-1 | Mercury 2.5 |
|----------|----------|----------|
| Creator | Microsoft | Inception |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 260K |
| Independent public score (not head-to-head) | 52.11 | null |
| Benchmarks Covered | 14 | 5 |
| Pricing (input/output) | N/A | $0.04 / $0.15 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- MAI-Thinking-1 public-lane score: 50.7 (Estimated · #49/152)
- Mercury 2.5 public-lane score: 44.5 (Estimated · #91/152)

| Benchmark | MAI-Thinking-1 | Mercury 2.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 46% | Coming soon | Coming soon |
| τ³-bench results | Coming soon | 96.0% | Coming soon |
| DeepSearchQA | Coming soon | 34.0% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- MAI-Thinking-1 public-lane score: 50.8 (Estimated · #56/151)
- Mercury 2.5 public-lane score: 47.8 (Estimated · #73/151)

| Benchmark | MAI-Thinking-1 | Mercury 2.5 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 87.7% | Coming soon | Coming soon |
| SWE-bench Verified | 73.5% | Coming soon | Coming soon |
| SWE-bench Pro | 52.8% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 46.0% | Coming soon | Coming soon |
| SciCode | Coming soon | 38% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- MAI-Thinking-1 public-lane score: Coming soon
- Mercury 2.5 public-lane score: 67.7 (Unranked · 1 rankable row)

| Benchmark | MAI-Thinking-1 | Mercury 2.5 | Winner |
|-----------|-----------|-----------|--------|
| Graphwalks BFS 128K | 90% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- MAI-Thinking-1 public-lane score: 52.6 (Estimated · #66/182)
- Mercury 2.5 public-lane score: 48.3 (Estimated · #94/182)

| Benchmark | MAI-Thinking-1 | Mercury 2.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 84.2% | Coming soon | Coming soon |
| GPQA-D | 84.2% | 79.0% | MAI-Thinking-1 |
| MMLU-Pro | 85% | Coming soon | Coming soon |
| SimpleQA | 31% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- MAI-Thinking-1 public-lane score: 94.7 (#1/121)
- Mercury 2.5 public-lane score: 80.1 (#53/121)

| Benchmark | MAI-Thinking-1 | Mercury 2.5 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 85% | 77% | MAI-Thinking-1 |

### Mathematics

- Winner: Insufficient shared evidence
- MAI-Thinking-1 public-lane score: 73.4 (Unranked · 3 rankable rows)
- Mercury 2.5 public-lane score: Coming soon

| Benchmark | MAI-Thinking-1 | Mercury 2.5 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 97% | Coming soon | Coming soon |
| AIME26 | 94.5% | Coming soon | Coming soon |
| HMMT Feb 2026 | 84.9% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between MAI-Thinking-1 and Mercury 2.5?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [MAI-Thinking-1 vs Mercury 2.5 Preview](/compare/mai-thinking-1-vs-mercury-2-5-preview)
- [Mercury 2.5 vs Mercury 2.5 Preview](/compare/mercury-2-5-vs-mercury-2-5-preview)
- [MAI-Thinking-1 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mai-thinking-1)
- [Mercury 2.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mercury-2-5)

## Explore More

- [MAI-Thinking-1 profile](/models/mai-thinking-1)
- [Mercury 2.5 profile](/models/mercury-2-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)