Compare / head-to-head
Hy3vsStep 3.5 Flash
Hy3 leads 4 of 4 shared benchmarks. Both offer a 256K-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
4 – 0
Hy3 leads
Cheaper per token
—
list price, input + output
Larger context
Tie
both 256K tokens
Provider uptime (30d)
— · —
Tencent Hunyuan · StepFun
Hy3
Tencent Hunyuan · released 2026-07-06
text
- Context
- 256K
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 41 · 8 core
Step 3.5 Flash
StepFun · released 2026-02-12
text
- Context
- 256K
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 18 · 5 core
Quality
Benchmark matrix
4 shared · 37 only Hy3 · 13 only Step 3.5 Flash| Benchmark | Hy3 | Step 3.5 Flash | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 4 | ||||
| SWE-bench Verified | 78% ↗ | 74.4% ↗ | +3.6 pt | Hy3 |
| LMArena Elo | 1440.6 ↗ | 1403.7 ↗ | +36.9 | Hy3 |
| BrowseComp | 84.2% ↗ | 51.6% ↗ | +32.6 pt | Hy3 |
| IMOAnswerBench | 90% ↗ | 85.4% ↗ | +4.6 pt | Hy3 |
| Only Hy3 reports · 37 | ||||
| GPQA Diamond | 90.4% ↗ | not reported | — | — |
| Humanity's Last Exam (no tools) | 37% ↗ | not reported | — | — |
| AA-LCR | 73.4% ↗ | not reported | — | — |
| Apex-Agent | 25.6% ↗ | not reported | — | — |
| ArxivMath | 52.2% ↗ | not reported | — | — |
| CL-bench | 23.8% ↗ | not reported | — | — |
| CL-bench Life | 17% ↗ | not reported | — | — |
| ClawEval | 68.5% ↗ | not reported | — | — |
| CMT-Benchmark | 37.8% ↗ | not reported | — | — |
| DeepSearchQA | 91% ↗ | not reported | — | — |
| DeepSWE | 28% ↗ | not reported | — | — |
| e-bench | 50.2% ↗ | not reported | — | — |
| FrontierScience-Olympiad | 74.8% ↗ | not reported | — | — |
| FrontierScience-Research | 21.3% ↗ | not reported | — | — |
| HLE (with tools, text-only) | 53.2% ↗ | not reported | — | — |
| HorizonMath | 7.1% ↗ | not reported | — | — |
| Hy-Backend 2.0 | 25% ↗ | not reported | — | — |
| Hy-CompanyBench | 41.7% ↗ | not reported | — | — |
| Hy-Euler Pro | 24.2% ↗ | not reported | — | — |
| Hy-FinModelBench | 69% ↗ | not reported | — | — |
| Hy-Math | 60.9% ↗ | not reported | — | — |
| Hy-SkillsWorld | 45.8% ↗ | not reported | — | — |
| Hy-SWE Max | 49% ↗ | not reported | — | — |
| MathArena Apex | 38.7% ↗ | not reported | — | — |
| MCP Atlas | 79.1% ↗ | not reported | — | — |
| NL2Repo | 45.6% ↗ | not reported | — | — |
| PHYBench | 77.4% ↗ | not reported | — | — |
| ProdBench | 23% ↗ | not reported | — | — |
| SkillsBench | 55.3% ↗ | not reported | — | — |
| SuperChem | 54.9% ↗ | not reported | — | — |
| SWE-bench Multilingual | 75.8% ↗ | not reported | — | — |
| SWE-bench Pro | 57.9% ↗ | not reported | — | — |
| Terminal-Bench 2.1 | 71.7% ↗ | not reported | — | — |
| Toolathlon | 48.5% ↗ | not reported | — | — |
| USAMO 2026 | 72% ↗ | not reported | — | — |
| WideSearch | 76.4% ↗ | not reported | — | — |
| WildClawBench | 53.6% ↗ | not reported | — | — |
| Only Step 3.5 Flash reports · 13 | ||||
| AIME 2025 | not reported | 97.3% ↗ | — | — |
| AIME 2026 | not reported | 96.7% ↗matharena | — | — |
| BrowseComp (with context manager) | not reported | 69% ↗ | — | — |
| BrowseComp-ZH | not reported | 66.9% ↗ | — | — |
| BrowseComp-ZH (with context manager) | not reported | 73.7% ↗ | — | — |
| GAIA (no file) | not reported | 84.5% ↗ | — | — |
| HMMT 2025 (Feb/Nov average) | not reported | 96.2% ↗ | — | — |
| LiveCodeBench v6 | not reported | 86.4% ↗ | — | — |
| ResearchRubrics | not reported | 65.3% ↗ | — | — |
| Tau2-Bench | not reported | 88.2% ↗ | — | — |
| Terminal-Bench 2.0 | not reported | 51% ↗ | — | — |
| xbench-DeepSearch 2025.05 | not reported | 83.7% ↗ | — | — |
| xbench-DeepSearch 2025.10 | not reported | 56.3% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Hy3 minus Step 3.5 Flash in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Hy3 | Step 3.5 Flash | Edge |
|---|---|---|---|
| Context window | 256K tokens | 256K tokens | Tie |
| Max output | — | — | — |
| Input price / 1M | — | — | — |
| Output price / 1M | — | — | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | — | — |
| Modalities | text | text | Tie |
| Released | 2026-07-06 | 2026-02-12 | — |
| Cited benchmark scores | 41 | 18 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Hy3 vs …
Models sharing the most benchmarksMore matchups
Step 3.5 Flash vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run Hy3 and Step 3.5 Flash on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.