# Claude Fable 5 vs Ornith-1.5-9B

> Side-by-side benchmark comparison for Claude Fable 5 and Ornith-1.5-9B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-fable-vs-ornith-1-5-9b
- Last updated: October 2, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Claude Fable 5 leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Claude Fable 5 has the higher overall point estimate 79.48 to 28.63. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in agentic, where the averages are 74.1 for Claude Fable 5 and 18 for Ornith-1.5-9B.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 84.3% and 46.2%.
- Ornith-1.5-9B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Claude Fable 5 also has the larger context window at 1M+.

## Model Snapshot

| Property | Claude Fable 5 | Ornith-1.5-9B |
|----------|----------|----------|
| Creator | Anthropic | Ornith AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 262K |
| Overall Score | 79.48 | 28.63 |
| Benchmarks Covered | 21 | 16 |
| Pricing (input/output) | $10.00 / $50.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Fable 5 public-lane score: 74.1 (Supported · #5/119)
- Ornith-1.5-9B public-lane score: 18 (Estimated · #101/119)

| Benchmark | Claude Fable 5 | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 34.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 84.3% | 46.2% | Claude Fable 5 |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.5% | Coming soon | Coming soon |
| ApprenticeBench | 34% | Coming soon | Coming soon |
| HLE w/ tools | Coming soon | 30.5% | Coming soon |
| MCP Atlas | Coming soon | 54.2% | Coming soon |
| Toolathlon-Verified | Coming soon | 41.2% | Coming soon |
| WideResearch | Coming soon | 59.5% | Coming soon |
| BrowseComp | Coming soon | 56.4% | Coming soon |
| Claw-Eval | Coming soon | 66.5% | Coming soon |

### Coding

- Winner: Not comparable
- Claude Fable 5 public-lane score: 73 (Supported · #6/144)
- Ornith-1.5-9B public-lane score: Coming soon

| Benchmark | Claude Fable 5 | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95% | 70.6% | Claude Fable 5 |
| SWE-bench Pro | 80% | 47.5% | Claude Fable 5 |
| FrontierSWE v2 | 47.0% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 53.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 84.3% | 46.2% | Claude Fable 5 |
| cursorBench31 | 70.6% | Coming soon | Coming soon |
| CursorBench 3.2 | 70.5% | Coming soon | Coming soon |
| VulcanBench v3 | 89.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 89.8% | Coming soon | Coming soon |
| SWE-bench (Vals) | 95.0% | Coming soon | Coming soon |
| SWE Multilingual | Coming soon | 54.4% | Coming soon |
| NL2Repo | Coming soon | 32.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Fable 5 public-lane score: 80.7 (Unranked · 4 rankable rows)
- Ornith-1.5-9B public-lane score: Coming soon

| Benchmark | Claude Fable 5 | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 98.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 89.2% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Fable 5 public-lane score: 62.6 (Unranked · 2 rankable rows)
- Ornith-1.5-9B public-lane score: Coming soon

| Benchmark | Claude Fable 5 | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| Blueprint-Bench 2 | 38.6% | Coming soon | Coming soon |
| OfficeQA Pro | 57.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Claude Fable 5 public-lane score: 80.8 (Supported · #6/171)
- Ornith-1.5-9B public-lane score: 30.6 (Estimated · #134/171)

| Benchmark | Claude Fable 5 | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 93.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 91.5% | Coming soon | Coming soon |
| GPQA | Coming soon | 86.4% | Coming soon |
| GPQA-D | Coming soon | 86.4% | Coming soon |
| HLE | Coming soon | 20.2% | Coming soon |
| HLE w/o tools | Coming soon | 20.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude Fable 5 public-lane score: 75.7 (#58/125)
- Ornith-1.5-9B public-lane score: Coming soon

## FAQ

### Which is better overall, Claude Fable 5 or Ornith-1.5-9B?

Claude Fable 5 has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Claude Fable 5 and Ornith-1.5-9B?

The widest category gap is in agentic, where the averages are 74.1 for Claude Fable 5 and 18 for Ornith-1.5-9B.

### How many benchmarks does Claude Fable 5 cover on BenchLM?

Claude Fable 5 currently has 21 sourced benchmark scores on BenchLM.

### How many benchmarks does Ornith-1.5-9B cover on BenchLM?

Ornith-1.5-9B currently has 16 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Fable 5 vs Claude Fable 5.1](/compare/claude-fable-vs-claude-fable-5-1)
- [Ornith-1.5-9B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-ornith-1-5-9b)
- [Claude Fable 5 vs Ornith-1.5-397B](/compare/claude-fable-vs-ornith-1-5-397b)
- [Ornith-1.5-9B vs Ornith-1.5-397B](/compare/ornith-1-5-397b-vs-ornith-1-5-9b)

## Explore More

- [Claude Fable 5 profile](/models/claude-fable)
- [Ornith-1.5-9B profile](/models/ornith-1-5-9b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)