# GPT-5.2 vs Hy-MT1.5-1.8B-1.25bit

> Side-by-side benchmark comparison for GPT-5.2 and Hy-MT1.5-1.8B-1.25bit across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-2-vs-hy-mt1-5-1-8b-1-25bit
- Last updated: September 18, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-5.2 and Hy-MT1.5-1.8B-1.25bit.

## Summary

- GPT-5.2 and Hy-MT1.5-1.8B-1.25bit do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | GPT-5.2 | Hy-MT1.5-1.8B-1.25bit |
|----------|----------|----------|
| Creator | OpenAI | Tencent Hunyuan |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 400K | 262K |
| Independent public score (not head-to-head) | 64.86 | null |
| Benchmarks Covered | 15 | 0 |
| Pricing (input/output) | $1.75 / $14.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 42.7 (Supported · #107/154)
- Hy-MT1.5-1.8B-1.25bit public-lane score: Coming soon

| Benchmark | GPT-5.2 | Hy-MT1.5-1.8B-1.25bit | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | 65.8% | Coming soon | Coming soon |
| OSWorld-Verified | 47.3% | Coming soon | Coming soon |
| Gert Labs | 46.54% | Coming soon | Coming soon |
| JobBench | 34.3% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 46.3 (Supported · #87/154)
- Hy-MT1.5-1.8B-1.25bit public-lane score: Coming soon

| Benchmark | GPT-5.2 | Hy-MT1.5-1.8B-1.25bit | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80% | Coming soon | Coming soon |
| SWE-bench Pro | 55.6% | Coming soon | Coming soon |
| Vibe Code Bench | 53.50% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 66.3 (#22/48)
- Hy-MT1.5-1.8B-1.25bit public-lane score: Coming soon

| Benchmark | GPT-5.2 | Hy-MT1.5-1.8B-1.25bit | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 79.5% | Coming soon | Coming soon |
| MathVision | 83.0% | Coming soon | Coming soon |
| CharXiv | 82.1% | Coming soon | Coming soon |
| V* | 75.9% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 53.7 (Unranked · 3 rankable rows)
- Hy-MT1.5-1.8B-1.25bit public-lane score: Coming soon

| Benchmark | GPT-5.2 | Hy-MT1.5-1.8B-1.25bit | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 61.6 (Supported · #29/184)
- Hy-MT1.5-1.8B-1.25bit public-lane score: Coming soon

| Benchmark | GPT-5.2 | Hy-MT1.5-1.8B-1.25bit | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.4% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 91.2 (#14/124)
- Hy-MT1.5-1.8B-1.25bit public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.2 public-lane score: 57.4 (Unranked · 2 rankable rows)
- Hy-MT1.5-1.8B-1.25bit public-lane score: Coming soon

| Benchmark | GPT-5.2 | Hy-MT1.5-1.8B-1.25bit | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 40.700% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 18.800% | Coming soon | Coming soon |

## FAQ

### Can I compare GPT-5.2 and Hy-MT1.5-1.8B-1.25bit on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [GPT-5.2 vs GPT-5.2 Pro](/compare/gpt-5-2-vs-gpt-5-2-pro)
- [Hy-MT1.5-1.8B-1.25bit vs GPT-5.2 Pro](/compare/gpt-5-2-pro-vs-hy-mt1-5-1-8b-1-25bit)
- [GPT-5.2 vs GPT-5.2 Instant](/compare/gpt-5-2-vs-gpt-5-2-instant)
- [Hy-MT1.5-1.8B-1.25bit vs GPT-5.2 Instant](/compare/gpt-5-2-instant-vs-hy-mt1-5-1-8b-1-25bit)

## Explore More

- [GPT-5.2 profile](/models/gpt-5-2)
- [Hy-MT1.5-1.8B-1.25bit profile](/models/hy-mt1-5-1-8b-1-25bit)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)