# Claude Sonnet 4.5 Thinking vs Hy3 Preview

> Side-by-side benchmark comparison for Claude Sonnet 4.5 Thinking and Hy3 Preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-sonnet-4-5-thinking-vs-hy3-preview
- Last updated: September 23, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.6

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Claude Sonnet 4.5 Thinking and Hy3 Preview.

## Summary

- Claude Sonnet 4.5 Thinking and Hy3 Preview 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 | Claude Sonnet 4.5 Thinking | Hy3 Preview |
|----------|----------|----------|
| Creator | Anthropic | Tencent |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 200K | 256K |
| Independent public score (not head-to-head) | null | 45.32 |
| Benchmarks Covered | 1 | 6 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 Thinking public-lane score: Coming soon
- Hy3 Preview public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.5 Thinking | Hy3 Preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 54.4% | Coming soon |
| Gert Labs | Coming soon | 36.91% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 Thinking public-lane score: Coming soon
- Hy3 Preview public-lane score: 33.3 (Estimated · #85/135)

| Benchmark | Claude Sonnet 4.5 Thinking | Hy3 Preview | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 22.62% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 74.4% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 54.4% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 Thinking public-lane score: Coming soon
- Hy3 Preview public-lane score: 39.1 (Estimated · #93/160)

| Benchmark | Claude Sonnet 4.5 Thinking | Hy3 Preview | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 87.2% | Coming soon |
| GPQA-D | Coming soon | 87.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 Thinking public-lane score: Coming soon
- Hy3 Preview public-lane score: 46.9 (#86/124)

## FAQ

### Can I compare Claude Sonnet 4.5 Thinking and Hy3 Preview 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

- [Claude Sonnet 4.5 Thinking vs Claude Sonnet 4.5](/compare/claude-sonnet-4-5-vs-claude-sonnet-4-5-thinking)
- [Hy3 Preview vs Claude Sonnet 4.5](/compare/claude-sonnet-4-5-vs-hy3-preview)
- [Claude Sonnet 4.5 Thinking vs Hy3](/compare/claude-sonnet-4-5-thinking-vs-hy3)
- [Hy3 Preview vs Hy3](/compare/hy3-vs-hy3-preview)

## Explore More

- [Claude Sonnet 4.5 Thinking profile](/models/claude-sonnet-4-5-thinking)
- [Hy3 Preview profile](/models/hy3-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)