# Kimi K2.6 vs Ornith-1.5-397B

> Side-by-side benchmark comparison for Kimi K2.6 and Ornith-1.5-397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-2-6-vs-ornith-1-5-397b
- Last updated: October 2, 2026

- Shared sourced benchmarks: 10
- 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 62.72 to 60.2. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in agentic, where the averages are 43.4 for Kimi K2.6 and 56.8 for Ornith-1.5-397B.
- The biggest single benchmark swing is MCP Atlas in Agentic, with scores of 55.9% and 80%.
- Ornith-1.5-397B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Ornith-1.5-397B also has the larger context window at 262K.

## Model Snapshot

| Property | Kimi K2.6 | Ornith-1.5-397B |
|----------|----------|----------|
| Creator | Moonshot AI | Ornith AI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 262K |
| Overall Score | 60.2 | 62.72 |
| Benchmarks Covered | 37 | 18 |
| Pricing (input/output) | $0.95 / $4.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Kimi K2.6 public-lane score: 43.4 (Supported · #54/119)
- Ornith-1.5-397B public-lane score: 56.8 (Estimated · #29/119)

| Benchmark | Kimi K2.6 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 66.7% | Coming soon | Coming soon |
| BrowseComp | 83.2% | 86.6% | Ornith-1.5-397B |
| OSWorld-Verified | 73.1% | Coming soon | Coming soon |
| Toolathlon | 50% | Coming soon | Coming soon |
| MCP Atlas | 55.9% | 80% | Ornith-1.5-397B |
| Claw-Eval | 62.3% | 81.4% | Ornith-1.5-397B |
| DeepSearchQA | 92.5% | Coming soon | Coming soon |
| WideResearch | 80.8% | 80.8% | Tie |
| Gert Labs | 56.82% | Coming soon | Coming soon |
| ResearchClawBench | 18.0% | Coming soon | Coming soon |
| OSWorld 2.0 | 4.6% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 53.6% | 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 |

### Coding

- Winner: Directional only
- Kimi K2.6 public-lane score: 46 (Supported · #51/144)
- Ornith-1.5-397B public-lane score: 54.7 (Estimated · #34/144)

| Benchmark | Kimi K2.6 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.2% | 86% | Ornith-1.5-397B |
| LiveCodeBench v6 | 89.6% | Coming soon | Coming soon |
| SWE-bench Pro | 58.6% | 65.1% | Ornith-1.5-397B |
| SWE Multilingual | 76.7% | 79.6% | Ornith-1.5-397B |
| SciCode | 52.2% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 66.7% | Coming soon | Coming soon |
| Vibe Code Bench | 37.89% | Coming soon | Coming soon |
| cursorBench31 | 47.6% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 86.8% | Coming soon | Coming soon |
| SWE-bench (Vals) | 76.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 86.1% | Coming soon |
| DeepSWE | Coming soon | 56.0% | Coming soon |
| frontierBench | Coming soon | 13.5% | Coming soon |
| NL2Repo | Coming soon | 59.5% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Kimi K2.6 public-lane score: 64.9 (#26/49)
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Kimi K2.6 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 79.4% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 80.1% | Coming soon | Coming soon |
| CharXiv | 80.4% | Coming soon | Coming soon |
| MathVision | 87.4% | Coming soon | Coming soon |
| V* | 96.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Kimi K2.6 public-lane score: 58.3 (Supported · #46/171)
- Ornith-1.5-397B public-lane score: 63.3 (Estimated · #36/171)

| Benchmark | Kimi K2.6 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.5% | 92.8% | Ornith-1.5-397B |
| GPQA-D | 90.5% | 92.8% | Ornith-1.5-397B |
| HLE | 34.7% | 44.6% | Ornith-1.5-397B |
| GPQA Diamond (Vals) | 89.1% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 87.6% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 44.6% | Coming soon |

### Mathematics

- Winner: Not comparable
- Kimi K2.6 public-lane score: 71 (#1/7)
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | Kimi K2.6 | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 96.4% | Coming soon | Coming soon |
| HMMT Feb 2026 | 92.7% | Coming soon | Coming soon |
| MMAnswerBench | 86.0% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 38.966% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 14.580% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Kimi K2.6 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 Kimi K2.6 and Ornith-1.5-397B?

The widest category gap is in agentic, where the averages are 43.4 for Kimi K2.6 and 56.8 for Ornith-1.5-397B.

### How many benchmarks does Kimi K2.6 cover on BenchLM?

Kimi K2.6 currently has 37 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

- [Kimi K2.6 vs Ornith-1.5-35B-A3B](/compare/kimi-2-6-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)
- [Kimi K2.6 vs Ornith-1.5-9B](/compare/kimi-2-6-vs-ornith-1-5-9b)
- [Ornith-1.5-397B vs Ornith-1.5-9B](/compare/ornith-1-5-397b-vs-ornith-1-5-9b)

## Explore More

- [Kimi K2.6 profile](/models/kimi-2-6)
- [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)