# DeepSeek V4.1 Flash vs Ornith-1.5-397B

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash and Ornith-1.5-397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-ornith-1-5-397b
- Last updated: September 10, 2026

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

## Quick Verdict

Pick Ornith-1.5-397B if you want the stronger benchmark profile. DeepSeek V4.1 Flash only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Ornith-1.5-397B leads overall 65.33 to 55.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 74.2% and 56.0%.
- Ornith-1.5-397B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- DeepSeek V4.1 Flash also has the larger context window at 1M.

## Model Snapshot

| Property | DeepSeek V4.1 Flash | Ornith-1.5-397B |
|----------|----------|----------|
| Creator | DeepSeek | Ornith AI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | null | 65.33 |
| Benchmarks Covered | 21 | 18 |
| Pricing (input/output) | $0.30 / $1.20 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: 61 (Estimated · #18/152)

| Benchmark | DeepSeek V4.1 Flash | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | 86.1% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 31.20% | Coming soon | Coming soon |
| CyberGym | 88.1% | Coming soon | Coming soon |
| ExploitGym | 15.3% | Coming soon | Coming soon |
| HLE w/ tools | 63.9% | 56.1% | DeepSeek V4.1 Flash |
| AutomationBench | 54.8% | Coming soon | Coming soon |
| Agents' Last Exam | 31.8% | Coming soon | Coming soon |
| MCP Atlas | Coming soon | 80% | Coming soon |
| Toolathlon-Verified | Coming soon | 71.2% | Coming soon |
| WideResearch | Coming soon | 80.8% | Coming soon |
| BrowseComp | Coming soon | 86.6% | Coming soon |
| Claw-Eval | Coming soon | 81.4% | Coming soon |

### Coding

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: 59.1 (Estimated · #25/151)

| Benchmark | DeepSeek V4.1 Flash | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | 86.1% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| DeepSWE | 74.2% | 56.0% | DeepSeek V4.1 Flash |
| ProgramBench | 20.3% | Coming soon | Coming soon |
| NL2Repo | 65.4% | 59.5% | DeepSeek V4.1 Flash |
| SWE-bench Verified | Coming soon | 86% | Coming soon |
| SWE-bench Pro | Coming soon | 65.1% | Coming soon |
| SWE Multilingual | Coming soon | 79.6% | Coming soon |
| frontierBench | Coming soon | 13.5% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Chartography (tools) | 78.9% | Coming soon | Coming soon |
| BabyVision w/ Python | 89.6% | Coming soon | Coming soon |
| ZeroBench w/ Python | 49.0% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: 60.7 (Estimated · #36/182)

| Benchmark | DeepSeek V4.1 Flash | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | 92.8% | Ornith-1.5-397B |
| GPQA-D | 90.9% | 92.8% | Ornith-1.5-397B |
| HLE | 36.8% | 44.6% | Ornith-1.5-397B |
| HLE w/o tools | Coming soon | 44.6% | Coming soon |

### Mathematics

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ornith-1.5-397B public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Ornith-1.5-397B | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4.1 Flash or Ornith-1.5-397B?

Ornith-1.5-397B is ahead overall on BenchLM right now.

### How many benchmarks does DeepSeek V4.1 Flash cover on BenchLM?

DeepSeek V4.1 Flash 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

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- [Ornith-1.5-397B vs Ornith-1.5-35B-A3B](/compare/ornith-1-5-35b-a3b-vs-ornith-1-5-397b)
- [DeepSeek V4.1 Flash vs Ornith-1.5-9B](/compare/deepseek-v4-1-flash-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

- [DeepSeek V4.1 Flash profile](/models/deepseek-v4-1-flash)
- [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)