Seed-2.0-Mini is $0.2 cheaper per 1M input tokens (66.7% lower; 3x difference).
API cost decision in 10 seconds
Qwen3.5 Plus 2026-04-20 vs Seed-2.0-Mini
Pick Seed-2.0-Mini for lower cost; pick Qwen3.5 Plus 2026-04-20 only if the larger context window matters more.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Seed-2.0-Mini for lower cost; pick Qwen3.5 Plus 2026-04-20 only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Seed-2.0-Mini is estimated at $0.3 vs $1.2 for Qwen3.5 Plus 2026-04-20, saving $0.9 (75% lower).
Cost-first pickSeed-2.0-Mini
Context-first pickQwen3.5 Plus 2026-04-20
Sample savings$0.975%
10x traffic gap$9
Qwen3.5 Plus 2026-04-20 has more context, but Seed-2.0-Mini saves $0.9 on the standard workload. At 10x that traffic, the same price gap is about $9. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Seed-2.0-Mini stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Qwen3.5 Plus 2026-04-20 | Seed-2.0-Mini |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Seed-2.0-Mini | $2.4 | $0.7 |
| Balanced workload | 1M input + 1M output | Seed-2.0-Mini | $2.1 | $0.5 |
| Output-heavy chatbot | 1M input + 5M output | Seed-2.0-Mini | $9.3 | $2.1 |
Seed-2.0-Mini is $1.4 cheaper per 1M output tokens (77.8% lower; 4.5x difference).
Qwen3.5 Plus 2026-04-20 has 737.86K more context (3.81x larger).
Seed-2.0-Mini is $0.9 cheaper on the standard workload (75% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
Seed-2.0-Mini has the lower input price; Seed-2.0-Mini has the lower output price; Qwen3.5 Plus 2026-04-20 offers the larger context window. For the 1M input plus 500K output sample, Seed-2.0-Mini is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.2 for Qwen3.5 Plus 2026-04-20 and $0.3 for Seed-2.0-Mini.
Choose Qwen3.5 Plus 2026-04-20 when you care most about larger context window.
Choose Seed-2.0-Mini when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Seed-2.0-Mini is estimated at $0.3 vs $1.2 for Qwen3.5 Plus 2026-04-20, saving $0.9 (75% lower).
- Seed-2.0-Mini is $0.9 cheaper on the standard workload (75% lower).
- Seed-2.0-Mini is $0.2 cheaper per 1M input tokens (66.7% lower; 3x difference).
- Seed-2.0-Mini is $1.4 cheaper per 1M output tokens (77.8% lower; 4.5x difference).
- Qwen3.5 Plus 2026-04-20 has 737.86K more context (3.81x larger).
| Feature | Qwen3.5 Plus 2026-04-20 (Qwen) | Seed-2.0-Mini (ByteDance Seed) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.3 | $0.1 |
| Completion Price per 1M tokens | $1.8 | $0.4 |
| Sample Workload Cost 1M input + 500K output | $1.2 | $0.3 |
| Context Window | 1M | 262.14K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Seed-2.0-Mini | On the standard 1M input plus 500K output workload, Seed-2.0-Mini is estimated at $0.3 vs $1.2 for Qwen3.5 Plus 2026-04-20, saving $0.9 (75% lower). |
| High-volume input processing | Seed-2.0-Mini | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Seed-2.0-Mini | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Qwen3.5 Plus 2026-04-20 | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Qwen3 Next 80B A3B Instruct (free) can replace Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.
- Qwen2.5 7B Instruct can replace Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.09.
- Qwen3.5-9B can replace Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.11.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
- Gemini 3.1 Flash Lite offers 1.05M context with $1 sample workload cost.
- DeepSeek V4 Pro offers 1.05M context with $0.87 sample workload cost.
- No popular competitor is currently available.
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
Open cheapest modelsLarger context alternatives
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Seed-2.0-mini targets latency-sensitive, high-concurrency, and cost-sensitive scenarios, emphasizing fast response and flexible inference deployment. It delivers performance comparable to ByteDance-Seed-1.6, supports 256k context, four reasoning effort modes (minimal/low/medium/high), multimodal understanding,...