# Inkling 2 Small vs Ornith-1.5-397B

> Side-by-side benchmark comparison for Inkling 2 Small and Ornith-1.5-397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/inkling-2-small-vs-ornith-1-5-397b
- Last updated: November 7, 2026

- Shared sourced benchmarks: 9
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Ornith-1.5-397B leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Ornith-1.5-397B has the higher overall point estimate 62.5 to 59.06. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in coding, where the averages are 59.7 for Inkling 2 Small and 54.9 for Ornith-1.5-397B.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 72.1% and 56.0%.
- Ornith-1.5-397B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Inkling 2 Small also has the larger context window at 1M.

## Model Snapshot

| Property | Inkling 2 Small | Ornith-1.5-397B |
|----------|----------|----------|
| Creator | Thinking Machines Lab | Ornith AI |
| Type | Proprietary | Open Weight |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | 262K |
| Overall Score | 59.06 | 62.5 |
| Benchmarks Covered | 25 | 18 |
| Pricing (input/output) | $0.30 / $1.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Inkling 2 Small public-lane score: 59.9 (Supported · #26/131)
- Ornith-1.5-397B public-lane score: 59.4 (Estimated · #30/131)

| Benchmark | Inkling 2 Small | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.1% | 86.1% | Ornith-1.5-397B |
| BrowseComp | 90.2% | 86.6% | Inkling 2 Small |
| DeepSearchQA | 90.9% | Coming soon | Coming soon |
| MCP Atlas | 85% | 80% | Inkling 2 Small |
| JobBench | 70.5% | Coming soon | Coming soon |
| HLE w/ tools | Coming soon | 56.1% | Coming soon |
| Toolathlon-Verified | Coming soon | 71.2% | Coming soon |
| WideResearch | Coming soon | 80.8% | Coming soon |
| Claw-Eval | Coming soon | 81.4% | Coming soon |

### Coding

- Winner: Directional only
- Inkling 2 Small public-lane score: 59.7 (Supported · #20/157)
- Ornith-1.5-397B public-lane score: 54.9 (Estimated · #34/157)

| Benchmark | Inkling 2 Small | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 82.2% | 86% | Ornith-1.5-397B |
| SWE Multilingual | 81.2% | 79.6% | Inkling 2 Small |
| sweMarathon | 38.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 85.1% | 86.1% | Ornith-1.5-397B |
| DeepSWE | 72.1% | 56.0% | Inkling 2 Small |
| PostTrainBench v1.2 | 31.9% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 65.1% | Coming soon |
| frontierBench | Coming soon | 13.5% | Coming soon |
| NL2Repo | Coming soon | 59.5% | Coming soon |

### Reasoning

- Winner: Not comparable
- Inkling 2 Small public-lane score: 86.1 (Unranked · 2 rankable rows)
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Inkling 2 Small | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 70.6% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Inkling 2 Small public-lane score: 86.6 (#12/59)
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Inkling 2 Small | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 87.7% | Coming soon | Coming soon |
| CharXiv w/o tools | 85.6% | Coming soon | Coming soon |
| Chartography (no tools) | 36.7% | Coming soon | Coming soon |
| Chartography (tools) | 80.4% | Coming soon | Coming soon |
| BabyVision | 68.6% | Coming soon | Coming soon |
| BabyVision w/ Python | 93.7% | Coming soon | Coming soon |
| ScreenSpot Pro | 83.8% | Coming soon | Coming soon |
| PerceptionBench | 64.7% | Coming soon | Coming soon |
| MathVision | 92.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Inkling 2 Small public-lane score: 60.4 (Estimated · #46/178)
- Ornith-1.5-397B public-lane score: 65 (Estimated · #31/178)

| Benchmark | Inkling 2 Small | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93% | 92.8% | Inkling 2 Small |
| GPQA-D | 93.0% | 92.8% | Inkling 2 Small |
| HLE | Coming soon | 44.6% | Coming soon |
| HLE w/o tools | Coming soon | 44.6% | Coming soon |

### Mathematics

- Winner: Not comparable
- Inkling 2 Small public-lane score: 85.9 (Unranked · 2 rankable rows)
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Inkling 2 Small | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| HMMT Feb 2026 | 95.8% | Coming soon | Coming soon |
| Apex | 63.5% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Inkling 2 Small or Ornith-1.5-397B?

Ornith-1.5-397B has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Inkling 2 Small and Ornith-1.5-397B?

The widest category gap is in coding, where the averages are 59.7 for Inkling 2 Small and 54.9 for Ornith-1.5-397B.

### How many benchmarks does Inkling 2 Small cover on BenchLM?

Inkling 2 Small currently has 25 sourced benchmark scores on BenchLM.

### How many benchmarks does Ornith-1.5-397B cover on BenchLM?

Ornith-1.5-397B currently has 18 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Inkling 2 Small vs Inkling-Small](/compare/inkling-2-small-vs-inkling-small)
- [Ornith-1.5-397B vs Inkling-Small](/compare/inkling-small-vs-ornith-1-5-397b)
- [Inkling 2 Small vs Inkling](/compare/inkling-vs-inkling-2-small)
- [Ornith-1.5-397B vs Inkling](/compare/inkling-vs-ornith-1-5-397b)

## Explore More

- [Inkling 2 Small profile](/models/inkling-2-small)
- [Ornith-1.5-397B profile](/models/ornith-1-5-397b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)