# GLM-5.1 vs Granite 4.2 8B

> Side-by-side benchmark comparison for GLM-5.1 and Granite 4.2 8B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-1-vs-granite-4-2-8b
- Last updated: October 15, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: GLM-5.1 and Granite 4.2 8B share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Granite 4.2 8B has the lower published output-token price.
- GLM-5.1 has the larger published context window at 203K.

## Model Snapshot

| Property | GLM-5.1 | Granite 4.2 8B |
|----------|----------|----------|
| Creator | Z.AI | IBM |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 203K | 128K |
| Independent public score (not head-to-head) | 56.3 | 33.4 |
| Benchmarks Covered | 27 | 14 |
| Pricing (input/output) | $1.40 / $4.40 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GLM-5.1 public-lane score: 43.6 (Estimated · #62/127)
- Granite 4.2 8B public-lane score: 15.7 (Estimated · #113/127)

| Benchmark | GLM-5.1 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 63.5% | Coming soon | Coming soon |
| BrowseComp | 68% | Coming soon | Coming soon |
| τ³-bench results | 70.6% | 58.1% | GLM-5.1 |
| MCP Atlas | 71.8% | Coming soon | Coming soon |
| CyberGym | 68.7% | Coming soon | Coming soon |
| Claw-Eval | 62.3% | Coming soon | Coming soon |
| Gert Labs | 60.11% | Coming soon | Coming soon |
| ResearchClawBench | 18.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 56.9% | Coming soon | Coming soon |
| HLE w/ tools | 52.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 20.6% | Coming soon |
| BFCL v4 | Coming soon | 52.4% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GLM-5.1 public-lane score: 47.2 (Supported · #49/150)
- Granite 4.2 8B public-lane score: 17.2 (Estimated · #125/150)

| Benchmark | GLM-5.1 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 58.4% | 19.1% | GLM-5.1 |
| NL2Repo | 42.7% | Coming soon | Coming soon |
| SWE-Rebench | 62.7% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 63.5% | Coming soon | Coming soon |
| Vibe Code Bench | 31.46% | Coming soon | Coming soon |
| OpenHarmony Bench | 52.3% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 81.4% | Coming soon | Coming soon |
| SWE-bench (Vals) | 76.4% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 47.7% | Coming soon |
| SWE Multilingual | Coming soon | 30.8% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 20.6% | Coming soon |
| LiveCodeBench v6 | Coming soon | 73.2% | Coming soon |
| SciCode | Coming soon | 36.1% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GLM-5.1 public-lane score: 76.5 (Unranked · 2 rankable rows)
- Granite 4.2 8B public-lane score: 56.8 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- GLM-5.1 public-lane score: 52.7 (Supported · #70/184)
- Granite 4.2 8B public-lane score: 30.6 (Supported · #154/184)

| Benchmark | GLM-5.1 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 86.2% | Coming soon | Coming soon |
| HLE | 31% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 84.5% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.9% | Coming soon | Coming soon |
| GPQA | Coming soon | 64.1% | Coming soon |
| MMLU-Pro | Coming soon | 74.0% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GLM-5.1 public-lane score: 93.8 (#6/146)
- Granite 4.2 8B public-lane score: 86.5 (#41/146)

| Benchmark | GLM-5.1 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.3% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GLM-5.1 public-lane score: 66.7 (#7/12)
- Granite 4.2 8B public-lane score: Coming soon

| Benchmark | GLM-5.1 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.3% | Coming soon | Coming soon |
| HMMT Nov 2025 | 94.0% | Coming soon | Coming soon |
| HMMT Feb 2026 | 82.6% | Coming soon | Coming soon |
| MMAnswerBench | 83.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 36.842% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 86.7% | Coming soon |
| HMMT Feb 2025 | Coming soon | 78.3% | Coming soon |

## FAQ

### Is there enough evidence to pick between GLM-5.1 and Granite 4.2 8B?

Not yet. The models share only 2 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

- [GLM-5.1 vs GLM-5.3](/compare/glm-5-1-vs-glm-5-3)
- [Granite 4.2 8B vs GLM-5.3](/compare/glm-5-3-vs-granite-4-2-8b)
- [GLM-5.1 vs GLM-5.2](/compare/glm-5-1-vs-glm-5-2)
- [Granite 4.2 8B vs GLM-5.2](/compare/glm-5-2-vs-granite-4-2-8b)

## Explore More

- [GLM-5.1 profile](/models/glm-5-1)
- [Granite 4.2 8B profile](/models/granite-4-2-8b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)