# DeepSeek V4.1 Flash 1017 vs Spark-X2.6-4B

> Side-by-side benchmark comparison for DeepSeek V4.1 Flash 1017 and Spark-X2.6-4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v4-1-flash-vs-spark-x2-6-4b
- Last updated: October 20, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: DeepSeek V4.1 Flash 1017 and Spark-X2.6-4B share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Spark-X2.6-4B has the lower published output-token price.

## Model Snapshot

| Property | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B |
|----------|----------|----------|
| Creator | DeepSeek | SparkLLM |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 65.65 | 40.14 |
| Benchmarks Covered | 32 | 20 |
| Pricing (input/output) | $0.30 / $1.20 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash 1017 public-lane score: 61.7 (Supported · #24/131)
- Spark-X2.6-4B public-lane score: 33 (Estimated · #89/131)

| Benchmark | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 90.6% | Coming soon | Coming soon |
| terminalBench3 | 30% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 42.30% | Coming soon | Coming soon |
| CyberGym | 88.1% | Coming soon | Coming soon |
| ExploitGym | 15.3% | Coming soon | Coming soon |
| HLE w/ tools | 63.9% | 36.9% | DeepSeek V4.1 Flash 1017 |
| AutomationBench | 60.5% | Coming soon | Coming soon |
| Agents' Last Exam | 35.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 74.5% | Coming soon | Coming soon |
| CWE-bench v1 | 55.0% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 71.8% | Coming soon |
| τ²-bench results | Coming soon | 86.9% | Coming soon |
| MCP Atlas | Coming soon | 62.4% | Coming soon |
| BrowseComp | Coming soon | 53.1% | Coming soon |
| τ³-bench results | Coming soon | 34.7% | Coming soon |
| Claw-Eval | Coming soon | 69.9% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash 1017 public-lane score: 60.9 (Supported · #18/152)
- Spark-X2.6-4B public-lane score: 30.6 (Estimated · #95/152)

| Benchmark | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Codeforces | 3471.0 | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 90.6% | Coming soon | Coming soon |
| terminalBench3 | 30% | Coming soon | Coming soon |
| DeepSWE | 77.0% | Coming soon | Coming soon |
| ProgramBench | 29.1% | Coming soon | Coming soon |
| NL2Repo | 68.2% | Coming soon | Coming soon |
| OpenHarmony Bench | 60.3% | Coming soon | Coming soon |
| Bug Hunt Bench | 39.1 fixes | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 54.3% | Coming soon |
| SWE-bench Verified | Coming soon | 62.8% | Coming soon |
| SWE Multilingual | Coming soon | 64.7% | Coming soon |
| SciCode | Coming soon | 36.8% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash 1017 public-lane score: 82.5 (Unranked · 4 rankable rows)
- Spark-X2.6-4B public-lane score: 48.8 (Unranked · 2 rankable rows)

| Benchmark | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| STEMBench | 2.49 | Coming soon | Coming soon |
| JevBench 1.4 | 4.77 | Coming soon | Coming soon |
| JevBench 1.5 | 6.65 | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 53.3% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash 1017 public-lane score: 77.9 (Unranked · 1 rankable row)
- Spark-X2.6-4B public-lane score: Coming soon

| Benchmark | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench (LlamaIndex) | 87.11% | Coming soon | Coming soon |
| ParseBench | 65.72% | Coming soon | Coming soon |
| Chartography (tools) | 83.0% | Coming soon | Coming soon |
| BabyVision w/ Python | 92.5% | Coming soon | Coming soon |
| ZeroBench w/ Python | 51.0% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash 1017 public-lane score: 65.2 (Supported · #36/187)
- Spark-X2.6-4B public-lane score: 43 (Estimated · #109/187)

| Benchmark | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 90.9% | 69.9% | DeepSeek V4.1 Flash 1017 |
| GPQA-D | 90.9% | 77.1% | DeepSeek V4.1 Flash 1017 |
| HLE | 42.6% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 17.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash 1017 public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 78.2 (#62/149)

| Benchmark | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 93.6% | Coming soon |
| IFBench | Coming soon | 75.8% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- DeepSeek V4.1 Flash 1017 public-lane score: 70.1 (Unranked · 3 rankable rows)
- Spark-X2.6-4B public-lane score: 76.4 (Unranked · 3 rankable rows)

| Benchmark | DeepSeek V4.1 Flash 1017 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Apex | 65.6% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 67.368% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 26.829% | Coming soon | Coming soon |
| AIME26 | Coming soon | 91.2% | Coming soon |
| HMMT Feb 2026 | Coming soon | 81.3% | Coming soon |
| IMOAnswerBench | Coming soon | 75.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between DeepSeek V4.1 Flash 1017 and Spark-X2.6-4B?

Not yet. The models share only 3 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

- [DeepSeek V4.1 Flash 1017 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-deepseek-v4-1-flash)
- [Spark-X2.6-4B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-spark-x2-6-4b)
- [DeepSeek V4.1 Flash 1017 vs GPT-6.1 Sol](/compare/deepseek-v4-1-flash-vs-gpt-6-1-sol)
- [Spark-X2.6-4B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-spark-x2-6-4b)

## Explore More

- [DeepSeek V4.1 Flash 1017 profile](/models/deepseek-v4-1-flash)
- [Spark-X2.6-4B profile](/models/spark-x2-6-4b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)