# ERNIE 5.5 Flash Preview vs Spark-X2.6-4B

> Side-by-side benchmark comparison for ERNIE 5.5 Flash Preview and Spark-X2.6-4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/ernie-5-5-flash-preview-vs-spark-x2-6-4b
- Last updated: November 11, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: ERNIE 5.5 Flash Preview 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 | ERNIE 5.5 Flash Preview | Spark-X2.6-4B |
|----------|----------|----------|
| Creator | Baidu | SparkLLM |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | null | 40.34 |
| Benchmarks Covered | 15 | 20 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 35.7 (Estimated · #85/132)

| Benchmark | ERNIE 5.5 Flash Preview | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 46.50% | Coming soon | Coming soon |
| Terminal-Bench-Science 0.1 | 21.0% | Coming soon | Coming soon |
| AutomationBench | 61.9% | Coming soon | Coming soon |
| APEX-Agents | 64.2% | Coming soon | Coming soon |
| DRACO | 84.9% | Coming soon | Coming soon |
| SpreadsheetBench 2 | 36.4% | Coming soon | Coming soon |
| Agents' Last Exam (CLI) | 29.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 75.0% | Coming soon | Coming soon |
| MCP Atlas | 84.6% | 62.4% | ERNIE 5.5 Flash Preview |
| BrowseComp | 87.4% | 53.1% | ERNIE 5.5 Flash Preview |
| BFCL v4 | Coming soon | 71.8% | Coming soon |
| τ²-bench results | Coming soon | 86.9% | Coming soon |
| HLE w/ tools | Coming soon | 36.9% | Coming soon |
| τ³-bench results | Coming soon | 34.7% | Coming soon |
| Claw-Eval | Coming soon | 69.9% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 33.2 (Estimated · #97/158)

| Benchmark | ERNIE 5.5 Flash Preview | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 71.2% | Coming soon | Coming soon |
| ProgramBench | 29.5% | Coming soon | Coming soon |
| NL2Repo | 64.8% | 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
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: Coming soon

| Benchmark | ERNIE 5.5 Flash Preview | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 53.3% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: Coming soon

| Benchmark | ERNIE 5.5 Flash Preview | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro v2 | 67.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 43.1 (Estimated · #105/179)

| Benchmark | ERNIE 5.5 Flash Preview | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| HLE w/o tools | 46.4% | 17.9% | ERNIE 5.5 Flash Preview |
| GPQA-D | Coming soon | 77.1% | Coming soon |
| GPQA | Coming soon | 69.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 78.2 (#66/157)

| Benchmark | ERNIE 5.5 Flash Preview | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 93.6% | Coming soon |
| IFBench | Coming soon | 75.8% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 60.9 (Unranked · 3 rankable rows)

| Benchmark | ERNIE 5.5 Flash Preview | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| 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 ERNIE 5.5 Flash Preview 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

- [ERNIE 5.5 Flash Preview vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-ernie-5-5-flash-preview)
- [Spark-X2.6-4B vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-spark-x2-6-4b)
- [ERNIE 5.5 Flash Preview vs Gemini 4 Carbon](/compare/ernie-5-5-flash-preview-vs-gemini-4-carbon)
- [Spark-X2.6-4B vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-spark-x2-6-4b)

## Explore More

- [ERNIE 5.5 Flash Preview profile](/models/ernie-5-5-flash-preview)
- [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)