# LFM3-1.7B vs Solar Pro 4

> Side-by-side benchmark comparison for LFM3-1.7B and Solar Pro 4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/lfm3-1-7b-vs-solar-pro-4
- Last updated: October 27, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

LFM3-1.7B leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- LFM3-1.7B has the higher overall point estimate 22.99 to 0. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 12.9% and 57.0%.
- LFM3-1.7B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Solar Pro 4 also has the larger context window at 512K.

## Model Snapshot

| Property | LFM3-1.7B | Solar Pro 4 |
|----------|----------|----------|
| Creator | LiquidAI | Upstage |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 512K |
| Overall Score | 22.99 | null |
| Benchmarks Covered | 24 | 10 |
| Pricing (input/output) | $0.00 / $0.00 | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- LFM3-1.7B public-lane score: 14.4 (Estimated · #123/134)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | LFM3-1.7B | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 41.3% | Coming soon | Coming soon |
| BFCL v4 | 71.4% | Coming soon | Coming soon |
| τ³-bench results | 68.0% | Coming soon | Coming soon |
| WebArena-Verified | 38.4% | Coming soon | Coming soon |
| MCP Atlas | 32.6% | 61.4% | Solar Pro 4 |
| ToolSandbox | 80.36% | Coming soon | Coming soon |
| Claw-Eval | 68.6% | Coming soon | Coming soon |
| HLE w/ tools | 13.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 12.9% | 57.0% | Solar Pro 4 |
| LiveClaw | 45.60% | Coming soon | Coming soon |
| BrowseComp | Coming soon | 49.2% | Coming soon |
| APEX-Agents | Coming soon | 18.7% | Coming soon |

### Coding

- Winner: Not comparable
- LFM3-1.7B public-lane score: 13 (Estimated · #142/155)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | LFM3-1.7B | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| SciCode | 28.5% | Coming soon | Coming soon |
| SWE-bench Verified | 43.4% | 70.6% | Solar Pro 4 |
| SWE Multilingual | 23% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 12.9% | 57.0% | Solar Pro 4 |
| LiveCodeBench v6 | 73.5% | Coming soon | Coming soon |
| LiveCodeBench Pro | 31.7% | Coming soon | Coming soon |
| LiveCodeBench | Coming soon | 87.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- LFM3-1.7B public-lane score: 61.3 (Unranked · 1 rankable row)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | LFM3-1.7B | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| RULER (128K) | 65.56% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- LFM3-1.7B public-lane score: 25.5 (Estimated · #175/189)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | LFM3-1.7B | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 63.4% | Coming soon | Coming soon |
| GPQA-D | 63.4% | 89.0% | Solar Pro 4 |
| HLE | 7.2% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 86.3% | Coming soon |

### Instruction Following

- Winner: Not comparable
- LFM3-1.7B public-lane score: 71.7 (#76/156)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | LFM3-1.7B | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 96.7% | Coming soon | Coming soon |
| IFBench | 73.0% | Coming soon | Coming soon |
| Multi-IF | 89.10% | Coming soon | Coming soon |
| IFStruct | 93.72% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- LFM3-1.7B public-lane score: Coming soon
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | LFM3-1.7B | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 95.3% | Coming soon |

## FAQ

### Which is better overall, LFM3-1.7B or Solar Pro 4?

LFM3-1.7B has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### How many benchmarks does LFM3-1.7B cover on BenchLM?

LFM3-1.7B currently has 24 sourced benchmark scores on BenchLM.

### How many benchmarks does Solar Pro 4 cover on BenchLM?

Solar Pro 4 currently has 10 sourced benchmark scores on BenchLM.

## Related Comparisons

- [LFM3-1.7B vs LFM3-1.7B-Base](/compare/lfm3-1-7b-vs-lfm3-1-7b-base)
- [Solar Pro 4 vs LFM3-1.7B-Base](/compare/lfm3-1-7b-base-vs-solar-pro-4)
- [LFM3-1.7B vs LFM3-Audio-2B](/compare/lfm3-1-7b-vs-lfm3-audio-2b)
- [Solar Pro 4 vs LFM3-Audio-2B](/compare/lfm3-audio-2b-vs-solar-pro-4)

## Explore More

- [LFM3-1.7B profile](/models/lfm3-1-7b)
- [Solar Pro 4 profile](/models/solar-pro-4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)