# Inkling-Small vs Ultramarine 1 Flash

> Side-by-side benchmark comparison for Inkling-Small and Ultramarine 1 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/inkling-small-vs-ultramarine-1-flash
- Last updated: October 15, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Inkling-Small and Ultramarine 1 Flash 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.
- Ultramarine 1 Flash has the lower published output-token price.
- Inkling-Small has the larger published context window at 1M.

## Model Snapshot

| Property | Inkling-Small | Ultramarine 1 Flash |
|----------|----------|----------|
| Creator | Thinking Machines Lab | Paper Instruments |
| Type | Open Weight | Proprietary |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | Not disclosed |
| Independent public score (not head-to-head) | 53.6 | null |
| Benchmarks Covered | 28 | 5 |
| Pricing (input/output) | $0.58 / $1.44 | $0.15 / $0.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Inkling-Small public-lane score: 36.9 (Supported · #76/126)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Inkling-Small | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 64.7% | 83.2% | Ultramarine 1 Flash |
| BrowseComp | 77.4% | Coming soon | Coming soon |
| MCP Atlas | 79.6% | Coming soon | Coming soon |
| Toolathlon-Verified | 54.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 55.1% | Coming soon | Coming soon |
| JobBench | Coming soon | 62.9% | Coming soon |
| AutomationBench | Coming soon | 50.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Inkling-Small public-lane score: 37.8 (Supported · #70/149)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Inkling-Small | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.2% | Coming soon | Coming soon |
| SWE-bench Pro | 55.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 64.7% | 83.2% | Ultramarine 1 Flash |
| SciCode | 48.7% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.9% | Coming soon | Coming soon |
| SWE-bench (Vals) | 82.2% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 61.5% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Inkling-Small public-lane score: 55 (Unranked · 4 rankable rows)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Inkling-Small | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 40.1% | Coming soon | Coming soon |
| CritPt | 8.3% | Coming soon | Coming soon |
| ARC-AGI-1 | 84.00% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Inkling-Small public-lane score: 67.5 (#36/54)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Inkling-Small | Ultramarine 1 Flash | 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 |

### Knowledge

- Winner: Insufficient shared evidence
- Inkling-Small public-lane score: 55 (Supported · #58/182)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Inkling-Small | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 89.5% | Coming soon | Coming soon |
| GPQA-D | 89.5% | Coming soon | Coming soon |
| 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 |

### Instruction Following

- Winner: Insufficient shared evidence
- Inkling-Small public-lane score: 93.3 (#9/146)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Inkling-Small | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 82.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Inkling-Small public-lane score: 69.8 (#5/12)
- Ultramarine 1 Flash public-lane score: Coming soon

| Benchmark | Inkling-Small | Ultramarine 1 Flash | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.5% | Coming soon | Coming soon |
| HMMT Feb 2026 | 90.2% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 46.316% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 17.073% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Inkling-Small and Ultramarine 1 Flash?

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

- [Inkling-Small vs Inkling](/compare/inkling-vs-inkling-small)
- [Ultramarine 1 Flash vs Inkling](/compare/inkling-vs-ultramarine-1-flash)
- [Inkling-Small vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-inkling-small)
- [Ultramarine 1 Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-ultramarine-1-flash)

## Explore More

- [Inkling-Small profile](/models/inkling-small)
- [Ultramarine 1 Flash profile](/models/ultramarine-1-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)