# Inkling-Small vs Solar Pro 4

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

- Canonical page: https://benchlm.ai/compare/inkling-small-vs-solar-pro-4
- Last updated: September 10, 2026

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

## Quick Verdict

Pick Inkling-Small if you want the stronger benchmark profile. Solar Pro 4 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Inkling-Small leads overall 59.25 to 0.
- The biggest single benchmark swing is BrowseComp in Agentic, with scores of 77.4% and 49.2%.
- Solar Pro 4 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Inkling-Small also has the larger context window at 1M.

## Model Snapshot

| Property | Inkling-Small | Solar Pro 4 |
|----------|----------|----------|
| Creator | Thinking Machines Lab | Upstage |
| Type | Open Weight | Proprietary |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | 512K |
| Overall Score | 59.25 | null |
| Benchmarks Covered | 25 | 10 |
| Pricing (input/output) | $0.58 / $1.44 | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Inkling-Small public-lane score: 36.9 (Supported · #128/152)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Inkling-Small | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 64.7% | Coming soon | Coming soon |
| BrowseComp | 77.4% | 49.2% | Inkling-Small |
| MCP Atlas | 79.6% | 61.4% | Inkling-Small |
| Toolathlon-Verified | 54.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 55.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 57.0% | Coming soon |
| APEX-Agents | Coming soon | 18.7% | Coming soon |

### Coding

- Winner: Coming soon
- Inkling-Small public-lane score: 43.8 (Supported · #97/151)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Inkling-Small | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.2% | 70.6% | Inkling-Small |
| SWE-bench Pro | 55.9% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 64.7% | Coming soon | Coming soon |
| SciCode | 48.7% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.9% | Coming soon | Coming soon |
| SWE-bench (Vals) | 82.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 57.0% | Coming soon |
| LiveCodeBench | Coming soon | 87.8% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Inkling-Small public-lane score: 48.8 (#39/48)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Inkling-Small | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 74% | Coming soon | Coming soon |
| CharXiv | 81.3% | Coming soon | Coming soon |
| CharXiv w/o tools | 77.4% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- Inkling-Small public-lane score: 42.7 (Unranked · 3 rankable rows)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Inkling-Small | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 40.1% | Coming soon | Coming soon |
| CritPt | 8.3% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- Inkling-Small public-lane score: 56.5 (Supported · #46/183)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Inkling-Small | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 89.5% | Coming soon | Coming soon |
| GPQA-D | 89.5% | 89.0% | Inkling-Small |
| HLE | 47.8% | Coming soon | Coming soon |
| HLE w/o tools | 31.6% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 83.6% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 85.6% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 86.3% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Inkling-Small public-lane score: 89.6 (#25/123)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Inkling-Small | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 82.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Coming soon
- Inkling-Small public-lane score: 76.9 (Unranked · 2 rankable rows)
- Solar Pro 4 public-lane score: Coming soon

| Benchmark | Inkling-Small | Solar Pro 4 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.5% | 95.3% | Inkling-Small |
| HMMT Feb 2026 | 90.2% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Inkling-Small or Solar Pro 4?

Inkling-Small is ahead overall on BenchLM right now.

### How many benchmarks does Inkling-Small cover on BenchLM?

Inkling-Small currently has 25 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

- [Inkling-Small vs Inkling](/compare/inkling-vs-inkling-small)
- [Solar Pro 4 vs Inkling](/compare/inkling-vs-solar-pro-4)
- [Inkling-Small vs Solar Pro 2](/compare/inkling-small-vs-solar-pro-2)
- [Solar Pro 4 vs Solar Pro 2](/compare/solar-pro-2-vs-solar-pro-4)

## Explore More

- [Inkling-Small profile](/models/inkling-small)
- [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)