# GPT-5.6 Sol vs LFM2.5-2.6B

> Side-by-side benchmark comparison for GPT-5.6 Sol and LFM2.5-2.6B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-6-sol-vs-lfm2-5-2-6b
- Last updated: September 18, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-5.6 Sol and LFM2.5-2.6B.

## Summary

- GPT-5.6 Sol and LFM2.5-2.6B do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | GPT-5.6 Sol | LFM2.5-2.6B |
|----------|----------|----------|
| Creator | OpenAI | LiquidAI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 128K |
| Independent public score (not head-to-head) | 80.46 | 39.9 |
| Benchmarks Covered | 37 | 7 |
| Pricing (input/output) | $4.00 / $20.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.6 Sol public-lane score: 69.8 (Supported · #6/154)
- LFM2.5-2.6B public-lane score: 37.2 (Estimated · #131/154)

| Benchmark | GPT-5.6 Sol | LFM2.5-2.6B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 34.6% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 91.9% | Coming soon | Coming soon |
| BrowseComp | 92.2% | Coming soon | Coming soon |
| OSWorld 2.0 | 62.6% | Coming soon | Coming soon |
| CyberGym | 84.5% | Coming soon | Coming soon |
| ExploitGym | 33.7% | Coming soon | Coming soon |
| Toolathlon | 58% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 85.8% | Coming soon | Coming soon |
| ApprenticeBench | 26% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 56.9% | Coming soon |
| τ³-bench results | Coming soon | 5.7% | Coming soon |
| Claw-Eval | Coming soon | 62.9% | Coming soon |
| PinchBench | Coming soon | 68.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.6 Sol public-lane score: 74.3 (Supported · #5/154)
- LFM2.5-2.6B public-lane score: 39.2 (Estimated · #125/154)

| Benchmark | GPT-5.6 Sol | LFM2.5-2.6B | Winner |
|-----------|-----------|-----------|--------|
| Bug Hunt Bench | 42 fixes | Coming soon | Coming soon |
| SWE-bench Pro | 64.6% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 91.9% | Coming soon | Coming soon |
| DeepSWE | 72.7% | Coming soon | Coming soon |
| FrontierCode 1.1 Extended | 60.6% | Coming soon | Coming soon |
| FrontierSWE v2 | 32.2% | Coming soon | Coming soon |
| cursorBench32 | 67.2% | Coming soon | Coming soon |
| VulcanBench v3 | 87.0% | Coming soon | Coming soon |
| VulcanBench CII v1 | 86.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 82.6% | Coming soon | Coming soon |
| SWE-bench (Vals) | 96.2% | Coming soon | Coming soon |
| cursorBench40 | 41.7% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 59.4% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.6 Sol public-lane score: 87.6 (#4/48)
- LFM2.5-2.6B public-lane score: Coming soon

| Benchmark | GPT-5.6 Sol | LFM2.5-2.6B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 83% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 84.6% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.6 Sol public-lane score: 70.4 (#12/20)
- LFM2.5-2.6B public-lane score: 24.9 (Unranked · 2 rankable rows)

| Benchmark | GPT-5.6 Sol | LFM2.5-2.6B | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 92.5% | Coming soon | Coming soon |
| ARC-AGI-3 | 7.8% | Coming soon | Coming soon |
| GeneBench-Pro | 28.7% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.6 Sol public-lane score: 80.5 (Supported · #5/184)
- LFM2.5-2.6B public-lane score: 37 (Estimated · #151/184)

| Benchmark | GPT-5.6 Sol | LFM2.5-2.6B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 94.6% | Coming soon | Coming soon |
| GPQA-D | 94.6% | Coming soon | Coming soon |
| HLE-Verified | 54.5% | Coming soon | Coming soon |
| LABBench2 | 82.1% | Coming soon | Coming soon |
| HealthBench Professional | 60.5% | Coming soon | Coming soon |
| HealthBench Hard | 33.1% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 95.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.1% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.6 Sol public-lane score: 87.7 (#28/124)
- LFM2.5-2.6B public-lane score: 38.1 (#104/124)

| Benchmark | GPT-5.6 Sol | LFM2.5-2.6B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 59.2% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.6 Sol public-lane score: 96.8 (Unranked · 3 rankable rows)
- LFM2.5-2.6B public-lane score: Coming soon

| Benchmark | GPT-5.6 Sol | LFM2.5-2.6B | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 89% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 89.000% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 83.000% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 51.9% | Coming soon |

## FAQ

### Can I compare GPT-5.6 Sol and LFM2.5-2.6B on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [GPT-5.6 Sol vs GPT-5.6 Terra](/compare/gpt-5-6-sol-vs-gpt-5-6-terra)
- [LFM2.5-2.6B vs GPT-5.6 Terra](/compare/gpt-5-6-terra-vs-lfm2-5-2-6b)
- [GPT-5.6 Sol vs GPT-5.6 Luna](/compare/gpt-5-6-luna-vs-gpt-5-6-sol)
- [LFM2.5-2.6B vs GPT-5.6 Luna](/compare/gpt-5-6-luna-vs-lfm2-5-2-6b)

## Explore More

- [GPT-5.6 Sol profile](/models/gpt-5-6-sol)
- [LFM2.5-2.6B profile](/models/lfm2-5-2-6b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)