# ERNIE 5.5 Flash Preview vs GLM-5.1

> Side-by-side benchmark comparison for ERNIE 5.5 Flash Preview and GLM-5.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/ernie-5-5-flash-preview-vs-glm-5-1
- 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 GLM-5.1 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.
- ERNIE 5.5 Flash Preview has the lower published output-token price.
- ERNIE 5.5 Flash Preview has the larger published context window at 1M.

## Model Snapshot

| Property | ERNIE 5.5 Flash Preview | GLM-5.1 |
|----------|----------|----------|
| Creator | Baidu | Z.AI |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 203K |
| Independent public score (not head-to-head) | null | 56 |
| Benchmarks Covered | 15 | 27 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $1.40 / $4.40 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- GLM-5.1 public-lane score: 45.3 (Estimated · #58/132)

| Benchmark | ERNIE 5.5 Flash Preview | GLM-5.1 | 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% | 71.8% | ERNIE 5.5 Flash Preview |
| BrowseComp | 87.4% | 68% | ERNIE 5.5 Flash Preview |
| Terminal-Bench 2.0 | Coming soon | 63.5% | Coming soon |
| τ³-bench results | Coming soon | 70.6% | Coming soon |
| CyberGym | Coming soon | 68.7% | Coming soon |
| Claw-Eval | Coming soon | 62.3% | Coming soon |
| Gert Labs | Coming soon | 60.11% | Coming soon |
| ResearchClawBench | Coming soon | 18.2% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 56.9% | Coming soon |
| HLE w/ tools | Coming soon | 52.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- GLM-5.1 public-lane score: 47.5 (Supported · #56/158)

| Benchmark | ERNIE 5.5 Flash Preview | GLM-5.1 | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 71.2% | Coming soon | Coming soon |
| ProgramBench | 29.5% | Coming soon | Coming soon |
| NL2Repo | 64.8% | 42.7% | ERNIE 5.5 Flash Preview |
| SWE-bench Pro | Coming soon | 58.4% | Coming soon |
| SWE-Rebench | Coming soon | 62.7% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 63.5% | Coming soon |
| Vibe Code Bench | Coming soon | 31.46% | Coming soon |
| OpenHarmony Bench | Coming soon | 52.3% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 81.4% | Coming soon |
| SWE-bench (Vals) | Coming soon | 76.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- GLM-5.1 public-lane score: 44.8 (Estimated · #68/158)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- GLM-5.1 public-lane score: Coming soon

| Benchmark | ERNIE 5.5 Flash Preview | GLM-5.1 | 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
- GLM-5.1 public-lane score: 51.6 (Supported · #73/179)

| Benchmark | ERNIE 5.5 Flash Preview | GLM-5.1 | Winner |
|-----------|-----------|-----------|--------|
| HLE w/o tools | 46.4% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 86.2% | Coming soon |
| HLE | Coming soon | 31% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 84.5% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 86.9% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- GLM-5.1 public-lane score: 93.8 (#7/157)

### Mathematics

- Winner: Insufficient shared evidence
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- GLM-5.1 public-lane score: 55.7 (#8/12)

| Benchmark | ERNIE 5.5 Flash Preview | GLM-5.1 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 95.3% | Coming soon |
| HMMT Nov 2025 | Coming soon | 94.0% | Coming soon |
| HMMT Feb 2026 | Coming soon | 82.6% | Coming soon |
| MMAnswerBench | Coming soon | 83.8% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 36.842% | Coming soon |

## FAQ

### Is there enough evidence to pick between ERNIE 5.5 Flash Preview and GLM-5.1?

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 GLM-5.3](/compare/ernie-5-5-flash-preview-vs-glm-5-3)
- [GLM-5.1 vs GLM-5.3](/compare/glm-5-1-vs-glm-5-3)
- [ERNIE 5.5 Flash Preview vs GLM-5.2](/compare/ernie-5-5-flash-preview-vs-glm-5-2)
- [GLM-5.1 vs GLM-5.2](/compare/glm-5-1-vs-glm-5-2)

## Explore More

- [ERNIE 5.5 Flash Preview profile](/models/ernie-5-5-flash-preview)
- [GLM-5.1 profile](/models/glm-5-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)