# Claude 4 Sonnet vs Ornith-1.5-35B-A3B

> Side-by-side benchmark comparison for Claude 4 Sonnet and Ornith-1.5-35B-A3B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-4-sonnet-vs-ornith-1-5-35b-a3b
- Last updated: October 2, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude 4 Sonnet and Ornith-1.5-35B-A3B share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Ornith-1.5-35B-A3B has the lower published output-token price.
- Ornith-1.5-35B-A3B has the larger published context window at 262K.

## Model Snapshot

| Property | Claude 4 Sonnet | Ornith-1.5-35B-A3B |
|----------|----------|----------|
| Creator | Anthropic | Ornith AI |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 262K |
| Independent public score (not head-to-head) | 38.61 | 32.61 |
| Benchmarks Covered | 3 | 18 |
| Pricing (input/output) | $3.00 / $15.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: Coming soon
- Ornith-1.5-35B-A3B public-lane score: 23.5 (Estimated · #95/119)

| Benchmark | Claude 4 Sonnet | Ornith-1.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 39.66% | Coming soon | Coming soon |
| JobBench | 18.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 67.8% | Coming soon |
| HLE w/ tools | Coming soon | 33.4% | Coming soon |
| MCP Atlas | Coming soon | 70.2% | Coming soon |
| Toolathlon-Verified | Coming soon | 48.7% | Coming soon |
| WideResearch | Coming soon | 67.8% | Coming soon |
| BrowseComp | Coming soon | 67.6% | Coming soon |
| Claw-Eval | Coming soon | 72.5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: Coming soon
- Ornith-1.5-35B-A3B public-lane score: 24 (Estimated · #110/144)

| Benchmark | Claude 4 Sonnet | Ornith-1.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 72.7% | 79% | Ornith-1.5-35B-A3B |
| Terminal-Bench 2.1 | Coming soon | 67.8% | Coming soon |
| SWE-bench Pro | Coming soon | 59.6% | Coming soon |
| SWE Multilingual | Coming soon | 71.4% | Coming soon |
| DeepSWE | Coming soon | 22.0% | Coming soon |
| frontierBench | Coming soon | 5.1% | Coming soon |
| NL2Repo | Coming soon | 46.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 52.5 (Unranked · 2 rankable rows)
- Ornith-1.5-35B-A3B public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 53 (Unranked · 1 rankable row)
- Ornith-1.5-35B-A3B public-lane score: Coming soon

### Knowledge

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 36.5 (Estimated · #109/171)
- Ornith-1.5-35B-A3B public-lane score: 34.5 (Estimated · #119/171)

| Benchmark | Claude 4 Sonnet | Ornith-1.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 89.2% | Coming soon |
| GPQA-D | Coming soon | 89.2% | Coming soon |
| HLE | Coming soon | 25.6% | Coming soon |
| HLE w/o tools | Coming soon | 25.6% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 52 (#78/125)
- Ornith-1.5-35B-A3B public-lane score: Coming soon

## FAQ

### Is there enough evidence to pick between Claude 4 Sonnet and Ornith-1.5-35B-A3B?

Not yet. The models share only 1 sourced benchmark row, 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

- [Claude 4 Sonnet vs Ornith-1.5-397B](/compare/claude-4-sonnet-vs-ornith-1-5-397b)
- [Ornith-1.5-35B-A3B vs Ornith-1.5-397B](/compare/ornith-1-5-35b-a3b-vs-ornith-1-5-397b)
- [Claude 4 Sonnet vs Ornith-1.5-9B](/compare/claude-4-sonnet-vs-ornith-1-5-9b)
- [Ornith-1.5-35B-A3B vs Ornith-1.5-9B](/compare/ornith-1-5-35b-a3b-vs-ornith-1-5-9b)

## Explore More

- [Claude 4 Sonnet profile](/models/claude-4-sonnet)
- [Ornith-1.5-35B-A3B profile](/models/ornith-1-5-35b-a3b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)