# MAI-Thinking-1 vs Solar Open 2

> Side-by-side benchmark comparison for MAI-Thinking-1 and Solar Open 2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mai-thinking-1-vs-solar-open-2
- Last updated: September 10, 2026

- Shared sourced benchmarks: 7
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick MAI-Thinking-1 if you want the stronger benchmark profile. Solar Open 2 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- MAI-Thinking-1 leads overall 52 to 0.
- The biggest single benchmark swing is HMMT Feb 2026 in Mathematics, with scores of 84.9% and 93.9%.
- Solar Open 2 also has the larger context window at 1M.

## Model Snapshot

| Property | MAI-Thinking-1 | Solar Open 2 |
|----------|----------|----------|
| Creator | Microsoft | Upstage |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Overall Score | 52 | null |
| Benchmarks Covered | 14 | 11 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- MAI-Thinking-1 public-lane score: 50.3 (Estimated · #50/152)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | MAI-Thinking-1 | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 46% | Coming soon | Coming soon |
| terminalBenchHard | Coming soon | 28.3% | Coming soon |
| APEX-Agents | Coming soon | 16.6% | Coming soon |
| MCP Atlas | Coming soon | 58.2% | Coming soon |

### Coding

- Winner: Coming soon
- MAI-Thinking-1 public-lane score: 50.4 (Estimated · #57/151)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | MAI-Thinking-1 | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 87.7% | 92.4% | Solar Open 2 |
| SWE-bench Verified | 73.5% | 70.4% | MAI-Thinking-1 |
| SWE-bench Pro | 52.8% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 46.0% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- MAI-Thinking-1 public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | MAI-Thinking-1 | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| Graphwalks BFS 128K | 90% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- MAI-Thinking-1 public-lane score: 52.3 (Estimated · #66/183)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | MAI-Thinking-1 | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 84.2% | Coming soon | Coming soon |
| GPQA-D | 84.2% | 86.3% | Solar Open 2 |
| MMLU-Pro | 85% | 86.2% | Solar Open 2 |
| SimpleQA | 31% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 28.8% | Coming soon |

### Instruction Following

- Winner: Coming soon
- MAI-Thinking-1 public-lane score: 94.7 (#1/123)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | MAI-Thinking-1 | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 85% | 80% | MAI-Thinking-1 |

### Mathematics

- Winner: Coming soon
- MAI-Thinking-1 public-lane score: 73.4 (Unranked · 3 rankable rows)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | MAI-Thinking-1 | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 97% | Coming soon | Coming soon |
| AIME26 | 94.5% | 95.7% | Solar Open 2 |
| HMMT Feb 2026 | 84.9% | 93.9% | Solar Open 2 |

## FAQ

### Which is better overall, MAI-Thinking-1 or Solar Open 2?

MAI-Thinking-1 is ahead overall on BenchLM right now.

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

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

### How many benchmarks does Solar Open 2 cover on BenchLM?

Solar Open 2 currently has 11 sourced benchmark scores on BenchLM.

## Related Comparisons

- [MAI-Thinking-1 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mai-thinking-1)
- [Solar Open 2 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-solar-open-2)
- [MAI-Thinking-1 vs GPT-6 Astra](/compare/gpt-6-astra-vs-mai-thinking-1)
- [Solar Open 2 vs GPT-6 Astra](/compare/gpt-6-astra-vs-solar-open-2)

## Explore More

- [MAI-Thinking-1 profile](/models/mai-thinking-1)
- [Solar Open 2 profile](/models/solar-open-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)