# GLM-5.1 vs Inkling 2 Small

> Side-by-side benchmark comparison for GLM-5.1 and Inkling 2 Small across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-1-vs-inkling-2-small
- Last updated: November 7, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Inkling 2 Small leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Inkling 2 Small has the higher overall point estimate 59.06 to 56.2. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in mathematics, where the averages are 55.9 for GLM-5.1 and 85.9 for Inkling 2 Small.
- The biggest single benchmark swing is BrowseComp in Agentic, with scores of 68% and 90.2%.
- Inkling 2 Small is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Inkling 2 Small also has the larger context window at 1M.

## Model Snapshot

| Property | GLM-5.1 | Inkling 2 Small |
|----------|----------|----------|
| Creator | Z.AI | Thinking Machines Lab |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Hybrid |
| Context | 203K | 1M |
| Overall Score | 56.2 | 59.06 |
| Benchmarks Covered | 27 | 25 |
| Pricing (input/output) | $1.40 / $4.40 | $0.30 / $1.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- GLM-5.1 public-lane score: 45.1 (Estimated · #58/131)
- Inkling 2 Small public-lane score: 59.9 (Supported · #26/131)

| Benchmark | GLM-5.1 | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 63.5% | Coming soon | Coming soon |
| BrowseComp | 68% | 90.2% | Inkling 2 Small |
| τ³-bench results | 70.6% | Coming soon | Coming soon |
| MCP Atlas | 71.8% | 85% | Inkling 2 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% | Coming soon | Coming soon |
| HLE w/ tools | 52.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 85.1% | Coming soon |
| DeepSearchQA | Coming soon | 90.9% | Coming soon |
| JobBench | Coming soon | 70.5% | Coming soon |

### Coding

- Winner: Inkling 2 Small
- GLM-5.1 public-lane score: 47.5 (Supported · #53/157)
- Inkling 2 Small public-lane score: 59.7 (Supported · #20/157)

| Benchmark | GLM-5.1 | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 58.4% | Coming soon | Coming soon |
| 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 | 82.2% | Coming soon |
| SWE Multilingual | Coming soon | 81.2% | Coming soon |
| sweMarathon | Coming soon | 38.8% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 85.1% | Coming soon |
| DeepSWE | Coming soon | 72.1% | Coming soon |
| PostTrainBench v1.2 | Coming soon | 31.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- GLM-5.1 public-lane score: 73.9 (Unranked · 2 rankable rows)
- Inkling 2 Small public-lane score: 86.1 (Unranked · 2 rankable rows)

| Benchmark | GLM-5.1 | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 70.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GLM-5.1 public-lane score: Coming soon
- Inkling 2 Small public-lane score: 86.6 (#12/59)

| Benchmark | GLM-5.1 | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 87.7% | Coming soon |
| CharXiv w/o tools | Coming soon | 85.6% | Coming soon |
| Chartography (no tools) | Coming soon | 36.7% | Coming soon |
| Chartography (tools) | Coming soon | 80.4% | Coming soon |
| BabyVision | Coming soon | 68.6% | Coming soon |
| BabyVision w/ Python | Coming soon | 93.7% | Coming soon |
| ScreenSpot Pro | Coming soon | 83.8% | Coming soon |
| PerceptionBench | Coming soon | 64.7% | Coming soon |
| MathVision | Coming soon | 92.8% | Coming soon |

### Knowledge

- Winner: Directional only
- GLM-5.1 public-lane score: 52.1 (Supported · #72/178)
- Inkling 2 Small public-lane score: 60.4 (Estimated · #46/178)

| Benchmark | GLM-5.1 | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 86.2% | 93.0% | Inkling 2 Small |
| 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 | 93% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GLM-5.1 public-lane score: 93.8 (#7/157)
- Inkling 2 Small public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- GLM-5.1 public-lane score: 55.9 (#8/12)
- Inkling 2 Small public-lane score: 85.9 (Unranked · 2 rankable rows)

| Benchmark | GLM-5.1 | Inkling 2 Small | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 95.3% | Coming soon | Coming soon |
| HMMT Nov 2025 | 94.0% | Coming soon | Coming soon |
| HMMT Feb 2026 | 82.6% | 95.8% | Inkling 2 Small |
| MMAnswerBench | 83.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 36.842% | Coming soon | Coming soon |
| Apex | Coming soon | 63.5% | Coming soon |

## FAQ

### Which is better overall, GLM-5.1 or Inkling 2 Small?

Inkling 2 Small has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between GLM-5.1 and Inkling 2 Small?

The widest category gap is in mathematics, where the averages are 55.9 for GLM-5.1 and 85.9 for Inkling 2 Small.

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

GLM-5.1 currently has 27 sourced benchmark scores on BenchLM.

### How many benchmarks does Inkling 2 Small cover on BenchLM?

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

## Explore More

- [GLM-5.1 profile](/models/glm-5-1)
- [Inkling 2 Small profile](/models/inkling-2-small)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)