| Signal | Seed-2.0-Mini | Delta | Step 3.5 Flash |
|---|---|---|---|
Capabilities | 83 | +17 | |
Pricing | 0 | +0 | |
Context window size | 86 | -- | |
Recency | 100 | -- | |
Output Capacity | 85 | +5 | |
Benchmarks | 0 | -65 | |
| Overall Result | 3 wins | of 6 | 1 wins |
30
days higher
0
days
0
days higher
ByteDance
StepFun
Step 3.5 Flash saves you $5.00/month
That's $60.00/year compared to Seed-2.0-Mini at your current usage level of 100K calls/month.
| Metric | Seed-2.0-Mini | Step 3.5 Flash | Winner |
|---|---|---|---|
| Overall Score | 85 | 75 | Seed-2.0-Mini |
| Rank | #28 | #118 | Seed-2.0-Mini |
| Quality Rank | #28 | #118 | Seed-2.0-Mini |
| Adoption Rank | #28 | #118 | Seed-2.0-Mini |
| Parameters | -- | -- | -- |
| Context Window | 262K | 262K | -- |
| Pricing | $0.10/$0.40/M | $0.10/$0.30/M | -- |
| Signal Scores | |||
| Capabilities | 83 | 67 | Seed-2.0-Mini |
| Pricing | 0 | 0 | Seed-2.0-Mini |
| Context window size | 86 | 86 | Seed-2.0-Mini |
| Recency | 100 | 100 | Seed-2.0-Mini |
| Output Capacity | 85 | 80 | Seed-2.0-Mini |
| Benchmarks | -- | 65 | Step 3.5 Flash |
Our composite score (0–100) combines six weighted signals: benchmark performance (25%), pricing efficiency (25%), context window size (15%), model recency (15%), output capacity (10%), and capability versatility (10%). Here's what the scores mean for these two models:
Scores 85/100 (rank #28), placing it in the top 91% of all 290 models tracked.
Scores 75/100 (rank #118), placing it in the top 60% of all 290 models tracked.
Seed-2.0-Mini has a 10-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.
Step 3.5 Flash offers 20% better value per quality point. At 1M tokens/day, you'd spend $6.00/month with Step 3.5 Flash vs $7.50/month with Seed-2.0-Mini - a $1.50 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Higher benchmark score (0/100) indicates stronger performance on coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Faster response time (speed score 0/100) is critical for user-facing chat. Step 3.5 Flash also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (262K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.30/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (85/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
Seed-2.0-Mini has a moderate advantage with a 9.799999999999997-point lead in composite score. It wins on more signal dimensions, but Step 3.5 Flash has specific strengths that could make it the better choice for certain workflows.
Best for Quality
Seed-2.0-Mini
Marginally better benchmark scores; both are excellent
Best for Cost
Step 3.5 Flash
20% lower pricing; better value at scale
Best for Reliability
Seed-2.0-Mini
Higher uptime and faster response speeds
Best for Prototyping
Seed-2.0-Mini
Stronger community support and better developer experience
Best for Production
Seed-2.0-Mini
Wider enterprise adoption and proven at scale
by ByteDance
| Capability | Seed-2.0-Mini | Step 3.5 Flash |
|---|---|---|
| Vision (Image Input)differs | ||
| Function Calling | ||
| Streaming | ||
| JSON Mode | ||
| Reasoning | ||
| Web Search | ||
| Image Output |
ByteDance
StepFun
Step 3.5 Flash saves you $0.1200/month
That's 18% cheaper than Seed-2.0-Mini at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | Seed-2.0-Mini | Step 3.5 Flash |
|---|---|---|
| Context Window | 262K | 262K |
| Max Output Tokens | 131,072 | 65,536 |
| Open Source | No | Yes |
| Created | Feb 26, 2026 | Jan 29, 2026 |
Seed-2.0-Mini scores 85/100 (rank #28) compared to Step 3.5 Flash's 75/100 (rank #118), giving it a 10-point advantage. Seed-2.0-Mini is the stronger overall choice, though Step 3.5 Flash may excel in specific areas like cost efficiency.
Seed-2.0-Mini is ranked #28 and Step 3.5 Flash is ranked #118 out of 290+ AI models. Rankings use a composite score combining benchmark performance (25%), pricing (25%), context window (15%), recency (15%), output capacity (10%), and versatility (10%). Scores update hourly.
Step 3.5 Flash is cheaper at $0.30/M output tokens vs Seed-2.0-Mini's $0.40/M output tokens - 1.3x more expensive. Input token pricing: Seed-2.0-Mini at $0.10/M vs Step 3.5 Flash at $0.10/M.
Seed-2.0-Mini has a larger context window of 262,144 tokens compared to Step 3.5 Flash's 262,144 tokens. A larger context window means the model can process longer documents and conversations.