# Ember-1 vs GLM-5.2

> Side-by-side benchmark comparison for Ember-1 and GLM-5.2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/ember-1-vs-glm-5-2
- Last updated: September 28, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: Ember-1 and GLM-5.2 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.
- GLM-5.2 has the lower published output-token price.
- Ember-1 has the larger published context window at 1.04M.

## Model Snapshot

| Property | Ember-1 | GLM-5.2 |
|----------|----------|----------|
| Creator | Fireworks | Z.AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.04M | 1M |
| Independent public score (not head-to-head) | null | 62.62 |
| Benchmarks Covered | 5 | 25 |
| Pricing (input/output) | $3.00 / $15.00 | $1.40 / $4.40 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Ember-1 public-lane score: Coming soon
- GLM-5.2 public-lane score: 55.9 (Supported · #30/117)

| Benchmark | Ember-1 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 82.0% | 81.0% | Ember-1 |
| τ²-bench Airline | 66.0% | Coming soon | Coming soon |
| Terminal-Bench 3.0 | Coming soon | 4.6% | Coming soon |
| MCP Atlas | Coming soon | 76.8% | Coming soon |
| Toolathlon | Coming soon | 48.2% | Coming soon |
| ResearchClawBench | Coming soon | 20.7% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 67.8% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Ember-1 public-lane score: Coming soon
- GLM-5.2 public-lane score: 56.1 (Supported · #25/142)

| Benchmark | Ember-1 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 82.0% | 81.0% | Ember-1 |
| SWE-bench Verified | 92.2% | Coming soon | Coming soon |
| DeepSWE | 75.2% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 62.1% | Coming soon |
| NL2Repo | Coming soon | 48.9% | Coming soon |
| ProgramBench | Coming soon | 63.7% | Coming soon |
| cursorBench32 | Coming soon | 55.0% | Coming soon |
| OpenHarmony Bench | Coming soon | 58.4% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 69.5% | Coming soon |
| SWE-bench (Vals) | Coming soon | 82.8% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Ember-1 public-lane score: Coming soon
- GLM-5.2 public-lane score: 76.1 (Unranked · 2 rankable rows)

| Benchmark | Ember-1 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 20.9% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Ember-1 public-lane score: Coming soon
- GLM-5.2 public-lane score: 57.2 (Supported · #45/168)

| Benchmark | Ember-1 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 91.2% | Coming soon |
| GPQA-D | Coming soon | 91.2% | Coming soon |
| HLE | Coming soon | 54.7% | Coming soon |
| HLE w/o tools | Coming soon | 40.5% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 85.6% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 86.7% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Ember-1 public-lane score: Coming soon
- GLM-5.2 public-lane score: 88.5 (#23/124)

### Mathematics

- Winner: Insufficient shared evidence
- Ember-1 public-lane score: Coming soon
- GLM-5.2 public-lane score: 80.7 (Unranked · 4 rankable rows)

| Benchmark | Ember-1 | GLM-5.2 | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 99.2% | Coming soon |
| HMMT Nov 2025 | Coming soon | 94.4% | Coming soon |
| HMMT Feb 2026 | Coming soon | 92.5% | Coming soon |
| MMAnswerBench | Coming soon | 91.0% | Coming soon |

## FAQ

### Is there enough evidence to pick between Ember-1 and GLM-5.2?

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

- [Ember-1 vs GLM-5.3](/compare/ember-1-vs-glm-5-3)
- [GLM-5.2 vs GLM-5.3](/compare/glm-5-2-vs-glm-5-3)
- [Ember-1 vs GLM-5.3-Flash](/compare/ember-1-vs-glm-5-3-flash)
- [GLM-5.2 vs GLM-5.3-Flash](/compare/glm-5-2-vs-glm-5-3-flash)

## Explore More

- [Ember-1 profile](/models/ember-1)
- [GLM-5.2 profile](/models/glm-5-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)