# GLM-5.1 vs Inkling-Small

> Side-by-side benchmark comparison for GLM-5.1 and Inkling-Small across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-1-vs-inkling-small
- Last updated: September 10, 2026

- Shared sourced benchmarks: 13
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick GLM-5.1 if you want the stronger benchmark profile. Inkling-Small only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GLM-5.1 leads overall 63.24 to 59.25.
- The clearest category separation is in reasoning, where the averages are 71.7 for GLM-5.1 and 42.7 for Inkling-Small.
- The biggest single benchmark swing is BrowseComp in Agentic, with scores of 68% and 77.4%.
- Inkling-Small is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Inkling-Small also has the larger context window at 1M.

## Model Snapshot

| Property | GLM-5.1 | Inkling-Small |
|----------|----------|----------|
| Creator | Z.AI | Thinking Machines Lab |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 203K | 1M |
| Overall Score | 63.24 | 59.25 |
| Benchmarks Covered | 26 | 25 |
| Pricing (input/output) | $1.40 / $4.40 | $0.58 / $1.44 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- GLM-5.1 public-lane score: 54.3 (Estimated · #37/152)
- Inkling-Small public-lane score: 36.9 (Supported · #128/152)

| Benchmark | GLM-5.1 | Inkling-Small | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 63.5% | 64.7% | Inkling-Small |
| BrowseComp | 68% | 77.4% | Inkling-Small |
| τ³-bench results | 70.6% | Coming soon | Coming soon |
| MCP Atlas | 71.8% | 79.6% | Inkling-Small |
| 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% | 55.1% | GLM-5.1 |
| Toolathlon-Verified | Coming soon | 54.4% | Coming soon |

### Coding

- Winner: GLM-5.1
- GLM-5.1 public-lane score: 56.4 (Supported · #38/151)
- Inkling-Small public-lane score: 43.8 (Supported · #97/151)

| Benchmark | GLM-5.1 | Inkling-Small | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 58.4% | 55.9% | GLM-5.1 |
| NL2Repo | 42.7% | Coming soon | Coming soon |
| SWE-Rebench | 62.7% | 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% | 85.9% | Inkling-Small |
| SWE-bench (Vals) | 76.4% | 82.2% | Inkling-Small |
| SWE-bench Verified | Coming soon | 80.2% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 64.7% | Coming soon |
| SciCode | Coming soon | 48.7% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- GLM-5.1 public-lane score: Coming soon
- Inkling-Small public-lane score: 48.8 (#39/48)

| Benchmark | GLM-5.1 | Inkling-Small | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 74% | Coming soon |
| CharXiv | Coming soon | 81.3% | Coming soon |
| CharXiv w/o tools | Coming soon | 77.4% | Coming soon |

### Reasoning

- Winner: Coming soon
- GLM-5.1 public-lane score: 71.7 (Unranked · 2 rankable rows)
- Inkling-Small public-lane score: 42.7 (Unranked · 3 rankable rows)

| Benchmark | GLM-5.1 | Inkling-Small | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 40.1% | Coming soon |
| CritPt | Coming soon | 8.3% | Coming soon |

### Knowledge

- Winner: Inkling-Small
- GLM-5.1 public-lane score: 54.8 (Supported · #54/183)
- Inkling-Small public-lane score: 56.5 (Supported · #46/183)

| Benchmark | GLM-5.1 | Inkling-Small | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 86.2% | 89.5% | Inkling-Small |
| HLE | 52.3% | 47.8% | GLM-5.1 |
| GPQA Diamond (Vals) | 84.5% | 83.6% | GLM-5.1 |
| MMLU-Pro (Vals) | 86.9% | 85.6% | GLM-5.1 |
| GPQA | Coming soon | 89.5% | Coming soon |
| HLE w/o tools | Coming soon | 31.6% | Coming soon |

### Instruction Following

- Winner: Coming soon
- GLM-5.1 public-lane score: 93.7 (#5/123)
- Inkling-Small public-lane score: 89.6 (#25/123)

| Benchmark | GLM-5.1 | Inkling-Small | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 82.2% | Coming soon |

### Mathematics

- Winner: Coming soon
- GLM-5.1 public-lane score: 64.1 (#3/7)
- Inkling-Small public-lane score: 76.9 (Unranked · 2 rankable rows)

| Benchmark | GLM-5.1 | Inkling-Small | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.3% | 95.5% | Inkling-Small |
| HMMT Nov 2025 | 94.0% | Coming soon | Coming soon |
| HMMT Feb 2026 | 82.6% | 90.2% | Inkling-Small |
| MMAnswerBench | 83.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 33.448% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 12.500% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GLM-5.1 or Inkling-Small?

GLM-5.1 is ahead overall on BenchLM right now.

### Where is the biggest gap between GLM-5.1 and Inkling-Small?

The widest category gap is in reasoning, where the averages are 71.7 for GLM-5.1 and 42.7 for Inkling-Small.

### How many benchmarks does GLM-5.1 cover on BenchLM?

GLM-5.1 currently has 26 sourced benchmark scores on BenchLM.

### How many benchmarks does Inkling-Small cover on BenchLM?

Inkling-Small currently has 25 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GLM-5.1 vs GLM-5.3](/compare/glm-5-1-vs-glm-5-3)
- [Inkling-Small vs GLM-5.3](/compare/glm-5-3-vs-inkling-small)
- [GLM-5.1 vs GLM-5.2](/compare/glm-5-1-vs-glm-5-2)
- [Inkling-Small vs GLM-5.2](/compare/glm-5-2-vs-inkling-small)

## Explore More

- [GLM-5.1 profile](/models/glm-5-1)
- [Inkling-Small profile](/models/inkling-small)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)