# Claude Opus 4.7 (Adaptive) vs Ornith-1.5-397B

> Side-by-side benchmark comparison for Claude Opus 4.7 (Adaptive) and Ornith-1.5-397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-7-adaptive-vs-ornith-1-5-397b
- Last updated: October 2, 2026

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

## Quick Verdict

Claude Opus 4.7 (Adaptive) leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Claude Opus 4.7 (Adaptive) has the higher overall point estimate 69.65 to 62.72. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in agentic, where the averages are 60.9 for Claude Opus 4.7 (Adaptive) and 56.8 for Ornith-1.5-397B.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 54.7% and 44.6%.
- Ornith-1.5-397B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Claude Opus 4.7 (Adaptive) also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Opus 4.7 (Adaptive) | Ornith-1.5-397B |
|----------|----------|----------|
| Creator | Anthropic | Ornith AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | 69.65 | 62.72 |
| Benchmarks Covered | 21 | 18 |
| Pricing (input/output) | $5.00 / $25.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Opus 4.7 (Adaptive) public-lane score: 60.9 (Supported · #21/119)
- Ornith-1.5-397B public-lane score: 56.8 (Estimated · #29/119)

| Benchmark | Claude Opus 4.7 (Adaptive) | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 69.4% | Coming soon | Coming soon |
| BrowseComp | 79.3% | 86.6% | Ornith-1.5-397B |
| MCP Atlas | 77.3% | 80% | Ornith-1.5-397B |
| OSWorld-Verified | 78% | Coming soon | Coming soon |
| CyberGym | 73.1% | Coming soon | Coming soon |
| OSWorld 2.0 | 18.2% | Coming soon | Coming soon |
| JobBench | 45.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 86.1% | 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
- Claude Opus 4.7 (Adaptive) public-lane score: 57.5 (Estimated · #26/144)
- Ornith-1.5-397B public-lane score: 54.7 (Estimated · #34/144)

| Benchmark | Claude Opus 4.7 (Adaptive) | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 87.6% | 86% | Claude Opus 4.7 (Adaptive) |
| SWE-bench Pro | 64.3% | 65.1% | Ornith-1.5-397B |
| Terminal-Bench 2.0 | 69.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 86.1% | Coming soon |
| SWE Multilingual | Coming soon | 79.6% | Coming soon |
| DeepSWE | Coming soon | 56.0% | Coming soon |
| frontierBench | Coming soon | 13.5% | Coming soon |
| NL2Repo | Coming soon | 59.5% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Opus 4.7 (Adaptive) public-lane score: 53.6 (Unranked · 3 rankable rows)
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Claude Opus 4.7 (Adaptive) | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 128K-256K | 59.2% | Coming soon | Coming soon |
| ARC-AGI-2 | 75.8% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.2% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Opus 4.7 (Adaptive) public-lane score: 50.1 (#38/49)
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Claude Opus 4.7 (Adaptive) | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 43.6% | Coming soon | Coming soon |
| CharXiv | 91% | Coming soon | Coming soon |
| CharXiv w/o tools | 82.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Claude Opus 4.7 (Adaptive) public-lane score: 63.7 (Estimated · #33/171)
- Ornith-1.5-397B public-lane score: 63.3 (Estimated · #36/171)

| Benchmark | Claude Opus 4.7 (Adaptive) | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 94.2% | 92.8% | Claude Opus 4.7 (Adaptive) |
| GPQA-D | 94.2% | 92.8% | Claude Opus 4.7 (Adaptive) |
| HLE | 54.7% | 44.6% | Claude Opus 4.7 (Adaptive) |
| HLE w/o tools | 46.9% | 44.6% | Claude Opus 4.7 (Adaptive) |

### Mathematics

- Winner: Not comparable
- Claude Opus 4.7 (Adaptive) public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Claude Opus 4.7 (Adaptive) | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 43.8% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.7 (Adaptive) or Ornith-1.5-397B?

Claude Opus 4.7 (Adaptive) has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Claude Opus 4.7 (Adaptive) and Ornith-1.5-397B?

The widest category gap is in agentic, where the averages are 60.9 for Claude Opus 4.7 (Adaptive) and 56.8 for Ornith-1.5-397B.

### How many benchmarks does Claude Opus 4.7 (Adaptive) cover on BenchLM?

Claude Opus 4.7 (Adaptive) currently has 21 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

- [Claude Opus 4.7 (Adaptive) vs Claude Opus 4.7](/compare/claude-opus-4-7-vs-claude-opus-4-7-adaptive)
- [Ornith-1.5-397B vs Claude Opus 4.7](/compare/claude-opus-4-7-vs-ornith-1-5-397b)
- [Claude Opus 4.7 (Adaptive) vs Ornith-1.5-35B-A3B](/compare/claude-opus-4-7-adaptive-vs-ornith-1-5-35b-a3b)
- [Ornith-1.5-397B vs Ornith-1.5-35B-A3B](/compare/ornith-1-5-35b-a3b-vs-ornith-1-5-397b)

## Explore More

- [Claude Opus 4.7 (Adaptive) profile](/models/claude-opus-4-7-adaptive)
- [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)