Compare / head-to-head
Dola Seed 2.0 ProvsStep 3.5 Flash
Dola Seed 2.0 Pro leads 5 of 5 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
5 – 0
Dola Seed 2.0 Pro leads
Cheaper per token
—
list price, input + output
Larger context
Tie
both 256K tokens
Provider uptime (30d)
— · —
ByteDance Seed · StepFun
Dola Seed 2.0 Pro
ByteDance Seed · released 2026-02-16
textvisionvideo
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
5 shared · 9 only Dola Seed 2.0 Pro · 12 only Step 3.5 Flash| Benchmark | Dola Seed 2.0 Pro | Step 3.5 Flash | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 5 | ||||
| SWE-bench Verified | 76.5% ↗ | 74.4% ↗ | +2.1 pt | Dola Seed 2.0 Pro |
| AIME 2025 | 99% ↗ | 97.3% ↗ | +1.7 pt | Dola Seed 2.0 Pro |
| LMArena Elo | 1447.6 ↗ | 1403.7 ↗ | +43.9 | Dola Seed 2.0 Pro |
| BrowseComp | 77.3% ↗ | 51.6% ↗ | +25.7 pt | Dola Seed 2.0 Pro |
| Terminal-Bench 2.0 | 55.8% ↗ | 51% ↗ | +4.8 pt | Dola Seed 2.0 Pro |
| Only Dola Seed 2.0 Pro reports · 9 | ||||
| GPQA Diamond | 92.4% ↗ | not reported | — | — |
| MMLU-Pro | 90.1% ↗ | not reported | — | — |
| Humanity's Last Exam (no tools) | 33.3% ↗ | not reported | — | — |
| BFCL v4 | 73.4% ↗ | not reported | — | — |
| DeepResearchBench | 53.3% ↗ | not reported | — | — |
| HLE-Verified | 73.6% ↗ | not reported | — | — |
| SciCode | 48.5% ↗ | not reported | — | — |
| SWE-bench Multilingual | 71.7% ↗ | not reported | — | — |
| SWE-bench Pro | 46.9% ↗ | not reported | — | — |
| Only Step 3.5 Flash reports · 12 | ||||
| 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% ↗ | — | — |
| IMOAnswerBench | not reported | 85.4% ↗ | — | — |
| LiveCodeBench v6 | not reported | 86.4% ↗ | — | — |
| ResearchRubrics | not reported | 65.3% ↗ | — | — |
| Tau2-Bench | not reported | 88.2% ↗ | — | — |
| 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 Dola Seed 2.0 Pro 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 | Dola Seed 2.0 Pro | Step 3.5 Flash | Edge |
|---|---|---|---|
| Context window | 256K tokens | 256K tokens | Tie |
| Max output | — | — | — |
| Input price / 1M | $0.5 ↗ | — | — |
| Output price / 1M | $3 ↗ | — | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | $3.5 | — | — |
| Modalities | text · vision · video | text | Dola Seed 2.0 Pro |
| Released | 2026-02-16 | 2026-02-12 | — |
| Cited benchmark scores | 14 | 18 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
Dola Seed 2.0 Pro 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 Dola Seed 2.0 Pro and Step 3.5 Flash on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.