# Ornith-1.5-397B vs ZAYA1-8B

> Side-by-side benchmark comparison for Ornith-1.5-397B and ZAYA1-8B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/ornith-1-5-397b-vs-zaya1-8b
- Last updated: October 2, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Ornith-1.5-397B and ZAYA1-8B 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.
- Ornith-1.5-397B has the larger published context window at 262K.

## Model Snapshot

| Property | Ornith-1.5-397B | ZAYA1-8B |
|----------|----------|----------|
| Creator | Ornith AI | Zyphra |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 131K |
| Independent public score (not head-to-head) | 62.72 | 31.63 |
| Benchmarks Covered | 18 | 11 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Ornith-1.5-397B public-lane score: 56.8 (Estimated · #29/119)
- ZAYA1-8B public-lane score: Coming soon

| Benchmark | Ornith-1.5-397B | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 86.1% | Coming soon | Coming soon |
| HLE w/ tools | 56.1% | Coming soon | Coming soon |
| MCP Atlas | 80% | Coming soon | Coming soon |
| Toolathlon-Verified | 71.2% | Coming soon | Coming soon |
| WideResearch | 80.8% | Coming soon | Coming soon |
| BrowseComp | 86.6% | Coming soon | Coming soon |
| Claw-Eval | 81.4% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 39.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Ornith-1.5-397B public-lane score: 54.7 (Estimated · #34/144)
- ZAYA1-8B public-lane score: Coming soon

| Benchmark | Ornith-1.5-397B | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 86.1% | Coming soon | Coming soon |
| SWE-bench Verified | 86% | Coming soon | Coming soon |
| SWE-bench Pro | 65.1% | Coming soon | Coming soon |
| SWE Multilingual | 79.6% | Coming soon | Coming soon |
| DeepSWE | 56.0% | Coming soon | Coming soon |
| frontierBench | 13.5% | Coming soon | Coming soon |
| NL2Repo | 59.5% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 65.8% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Ornith-1.5-397B public-lane score: 63.3 (Estimated · #36/171)
- ZAYA1-8B public-lane score: 33.4 (Estimated · #121/171)

| Benchmark | Ornith-1.5-397B | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.8% | 71% | Ornith-1.5-397B |
| GPQA-D | 92.8% | 71.0% | Ornith-1.5-397B |
| HLE | 44.6% | Coming soon | Coming soon |
| HLE w/o tools | 44.6% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 74.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Ornith-1.5-397B public-lane score: Coming soon
- ZAYA1-8B public-lane score: 22.8 (#122/125)

| Benchmark | Ornith-1.5-397B | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 85.6% | Coming soon |
| IFBench | Coming soon | 52.6% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Ornith-1.5-397B public-lane score: Coming soon
- ZAYA1-8B public-lane score: 61.3 (Unranked · 4 rankable rows)

| Benchmark | Ornith-1.5-397B | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 89.1% | Coming soon |
| HMMT Feb 2026 | Coming soon | 71.6% | Coming soon |
| IMOAnswerBench | Coming soon | 59.3% | Coming soon |
| Apex | Coming soon | 32.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between Ornith-1.5-397B and ZAYA1-8B?

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

- [Ornith-1.5-397B vs Ornith-1.5-35B-A3B](/compare/ornith-1-5-35b-a3b-vs-ornith-1-5-397b)
- [ZAYA1-8B vs Ornith-1.5-35B-A3B](/compare/ornith-1-5-35b-a3b-vs-zaya1-8b)
- [Ornith-1.5-397B vs Ornith-1.5-9B](/compare/ornith-1-5-397b-vs-ornith-1-5-9b)
- [ZAYA1-8B vs Ornith-1.5-9B](/compare/ornith-1-5-9b-vs-zaya1-8b)

## Explore More

- [Ornith-1.5-397B profile](/models/ornith-1-5-397b)
- [ZAYA1-8B profile](/models/zaya1-8b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)