# Hy4 vs Step 3.7 Flash

> Side-by-side benchmark comparison for Hy4 and Step 3.7 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/hy4-vs-step-3-7-flash
- Last updated: November 4, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Hy4 and Step 3.7 Flash share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Step 3.7 Flash has the lower published output-token price.
- Hy4 has the larger published context window at 1M.

## Model Snapshot

| Property | Hy4 | Step 3.7 Flash |
|----------|----------|----------|
| Creator | Tencent | StepFun |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Independent public score (not head-to-head) | null | 44.76 |
| Benchmarks Covered | 15 | 11 |
| Pricing (input/output) | $0.834 / $2.501 | $0.20 / $1.15 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Hy4 public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 39.8 (Estimated · #75/135)

| Benchmark | Hy4 | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 44.40% | Coming soon | Coming soon |
| Terminal-Bench-Science 0.1 | 19.8% | Coming soon | Coming soon |
| HLE w/ tools | 59.1% | 47.2% | Hy4 |
| Agents' Last Exam | 41.0% | Coming soon | Coming soon |
| APEX-Agents | 75.2% | Coming soon | Coming soon |
| AutomationBench | 56.2% | Coming soon | Coming soon |
| OSWorld 2.1 | 78.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 59.5% | Coming soon |
| BrowseComp | Coming soon | 75.8% | Coming soon |
| DeepSearchQA | Coming soon | 92.8% | Coming soon |
| Toolathlon | Coming soon | 49.5% | Coming soon |
| Claw-Eval | Coming soon | 67.1% | Coming soon |
| Gert Labs | Coming soon | 51.57% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Hy4 public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 32.3 (Estimated · #96/156)

| Benchmark | Hy4 | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 74.9% | Coming soon | Coming soon |
| sweMarathon | 43.8% | Coming soon | Coming soon |
| ProgramBench | 30.0% | Coming soon | Coming soon |
| FrontierCode 2.0 | 31.0% | Coming soon | Coming soon |
| PostTrainBench v1.2 | 35.2% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 56.3% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 59.5% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Hy4 public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 75.6 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Hy4 public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 75.7 (Unranked · 3 rankable rows)

| Benchmark | Hy4 | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 78.6% | Coming soon | Coming soon |
| ZeroBench w/ Python | 55.4% | Coming soon | Coming soon |
| SimpleVQA | Coming soon | 79.2% | Coming soon |
| V* | Coming soon | 95.3% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Hy4 public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 44.5 (Estimated · #101/179)

| Benchmark | Hy4 | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| HLE | 59.1% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Hy4 public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 82.1 (#60/157)

## FAQ

### Is there enough evidence to pick between Hy4 and Step 3.7 Flash?

Not yet. The models share only 1 sourced benchmark row, 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

- [Hy4 vs Hy4 preview](/compare/hy4-vs-hy4-preview)
- [Step 3.7 Flash vs Hy4 preview](/compare/hy4-preview-vs-step-3-7-flash)
- [Hy4 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-hy4)
- [Step 3.7 Flash vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-step-3-7-flash)

## Explore More

- [Hy4 profile](/models/hy4)
- [Step 3.7 Flash profile](/models/step-3-7-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)