# Spark-X2.6-4B Benchmark Scores & Performance

> Spark-X2.6-4B by SparkLLM scores 40.14/100 overall, ranking #140 out of 972 AI models.

Canonical page: https://benchlm.ai/models/spark-x2-6-4b

Last updated: October 20, 2026

## Model Details

| Property | Value |
|----------|-------|
| Creator | SparkLLM |
| Source Type | Open Weight |
| Reasoning Type | Reasoning |
| Context Window | 1M |
| Official model card | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| Overall Score | 40.14/100 |
| Overall Rank | #140 of 972 |

## Family & Coverage

- Family: Spark X2.6
- Variant: 4b (4B)
- Benchmarks covered: 21 of 668
- Coverage note: BenchLM currently has partial benchmark coverage for this model, so the overall score is conservative.

## Agentic Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [BFCL v4](/benchmarks/bfcl-v4) | 71.8% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [τ²-bench results](/benchmarks/tau2-bench) | 86.9% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [MCP Atlas](/benchmarks/mcpatlas) | 62.4% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [BrowseComp](/benchmarks/browsecomp) | 53.1% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [HLE w/ tools](/benchmarks/hlewithtools) | 36.9% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [τ³-bench results](/benchmarks/tau3-bench) | 34.7% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [Claw-Eval](/benchmarks/claw-eval) | 69.9% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |

## Coding Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [SWE-bench Pro](/benchmarks/swe-bench-pro) | 54.3% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [SWE-bench Verified](/benchmarks/swe-bench-verified) | 62.8% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [SWE Multilingual](/benchmarks/swe-bench-multilingual) | 64.7% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [SciCode](/benchmarks/scicode) | 36.8% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |

## Reasoning Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [AA-LCR](/benchmarks/lcr) | 67.3% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [LongBench v2](/benchmarks/longbench-v2) | 53.3% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |

## Knowledge Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [GPQA-D](/benchmarks/gpqa-diamond) | 77.1% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [HLE w/o tools](/benchmarks/hlenotools) | 17.9% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [GPQA](/benchmarks/gpqa) | 69.9% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |

## Instruction Following Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [IFEval](/benchmarks/ifeval) | 93.6% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [IFBench](/benchmarks/ifbench) | 75.8% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |

## Mathematics Benchmarks

| Benchmark | Score | Source |
|-----------|-------|--------|
| [AIME26](/benchmarks/aime2026) | 91.2% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [HMMT Feb 2026](/benchmarks/hmmtfeb2026) | 81.3% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |
| [IMOAnswerBench](/benchmarks/imoanswerbench) | 75.2% | [SparkLLM Spark-X2.6-4B model card](https://huggingface.co/XHToken/Spark-X2.6-4B) |