# DeepSeek V4.1 Flash vs Ternary Bonsai 2 27B

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash and Ternary Bonsai 2 27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-ternary-bonsai-2-27b
- Last updated: September 18, 2026

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

## Quick Verdict

Pick DeepSeek V4.1 Flash if you want the stronger benchmark profile. Ternary Bonsai 2 27B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- DeepSeek V4.1 Flash leads overall 66 to 50.78.
- The clearest category separation is in reasoning, where the averages are 78.5 for DeepSeek V4.1 Flash and 73.9 for Ternary Bonsai 2 27B.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 90.6% and 52.8%.
- Ternary Bonsai 2 27B 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 | Ternary Bonsai 2 27B |
|----------|----------|----------|
| Creator | DeepSeek | Prism ML |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | null | 50.78 |
| Benchmarks Covered | 21 | 21 |
| 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
- Ternary Bonsai 2 27B public-lane score: 49.9 (Estimated · #59/154)

| Benchmark | DeepSeek V4.1 Flash | Ternary Bonsai 2 27B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | 52.8% | 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% | Coming soon | Coming soon |
| AutomationBench | 54.8% | Coming soon | Coming soon |
| Agents' Last Exam | 31.8% | Coming soon | Coming soon |
| τ²-bench results | Coming soon | 80.2% | Coming soon |
| BFCL v3 | Coming soon | 74.9% | Coming soon |

### Coding

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ternary Bonsai 2 27B public-lane score: 49.9 (Estimated · #64/154)

| Benchmark | DeepSeek V4.1 Flash | Ternary Bonsai 2 27B | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | 52.8% | DeepSeek V4.1 Flash |
| terminalBench3 | 30% | Coming soon | Coming soon |
| DeepSWE | 74.2% | Coming soon | Coming soon |
| ProgramBench | 20.3% | Coming soon | Coming soon |
| NL2Repo | 65.4% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 90.1% | Coming soon |
| BigCodeBench | Coming soon | 58.1% | Coming soon |
| SWE-bench Verified | Coming soon | 60.8% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: 73.5 (Unranked · 1 rankable row)
- Ternary Bonsai 2 27B public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash | Ternary Bonsai 2 27B | 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 |
| CharXiv (overall) | Coming soon | 80.0% | Coming soon |
| A-OKVQA | Coming soon | 86.8% | Coming soon |
| OmniDocBench 1.6 | Coming soon | 89.1% | Coming soon |
| RealWorldQA | Coming soon | 80.1% | Coming soon |
| OCRBench V2 | Coming soon | 56.9% | Coming soon |

### Reasoning

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: 78.5 (Unranked · 2 rankable rows)
- Ternary Bonsai 2 27B public-lane score: 73.9 (Unranked · 1 rankable row)

### Knowledge

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ternary Bonsai 2 27B public-lane score: 50.6 (Estimated · #78/184)

| Benchmark | DeepSeek V4.1 Flash | Ternary Bonsai 2 27B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | 85.8% | DeepSeek V4.1 Flash |
| GPQA-D | 90.9% | 85.8% | DeepSeek V4.1 Flash |
| HLE | 36.8% | Coming soon | Coming soon |
| MMLU-Redux | Coming soon | 89.1% | Coming soon |

### Instruction Following

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ternary Bonsai 2 27B public-lane score: 71 (#64/124)

| Benchmark | DeepSeek V4.1 Flash | Ternary Bonsai 2 27B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 91.3% | Coming soon |
| IFBench | Coming soon | 74% | Coming soon |

### Mathematics

- Winner: Coming soon
- DeepSeek V4.1 Flash public-lane score: Coming soon
- Ternary Bonsai 2 27B public-lane score: 76.8 (Unranked · 4 rankable rows)

| Benchmark | DeepSeek V4.1 Flash | Ternary Bonsai 2 27B | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |
| GSM8K | Coming soon | 96.7% | Coming soon |
| MATH-500 | Coming soon | 98.8% | Coming soon |
| AIME 2025 | Coming soon | 95% | Coming soon |
| AIME26 | Coming soon | 95.8% | Coming soon |

## FAQ

### Which is better overall, DeepSeek V4.1 Flash or Ternary Bonsai 2 27B?

DeepSeek V4.1 Flash is ahead overall on BenchLM right now.

### Where is the biggest gap between DeepSeek V4.1 Flash and Ternary Bonsai 2 27B?

The widest category gap is in reasoning, where the averages are 78.5 for DeepSeek V4.1 Flash and 73.9 for Ternary Bonsai 2 27B.

### 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 Ternary Bonsai 2 27B cover on BenchLM?

Ternary Bonsai 2 27B currently has 21 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V4.1 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-deepseek-v4-1-flash)
- [Ternary Bonsai 2 27B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-ternary-bonsai-2-27b)
- [DeepSeek V4.1 Flash vs GPT-6 Astra](/compare/deepseek-v4-1-flash-vs-gpt-6-astra)
- [Ternary Bonsai 2 27B vs GPT-6 Astra](/compare/gpt-6-astra-vs-ternary-bonsai-2-27b)

## Explore More

- [DeepSeek V4.1 Flash profile](/models/deepseek-v4-1-flash)
- [Ternary Bonsai 2 27B profile](/models/ternary-bonsai-2-27b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)