Qwen3.8 Flash vs Seed 2.0 Pro pricing
- For the Chatbot workload, Qwen3.8 Flash costs 5.2× less than Seed 2.0 Pro.
- For the RAG workload, Qwen3.8 Flash costs 3.8× less than Seed 2.0 Pro.
- For the Coding agent workload, Qwen3.8 Flash costs 4.9× less than Seed 2.0 Pro.
Prices
| USD per 1M tokens | Qwen3.8 Flash | Seed 2.0 Pro |
|---|---|---|
| Input | $0.15 | $0.50 |
| Output | $0.47 | $3.00 |
| Cache read | $0.016 | $0.10 |
| Cache write | $0.20 | Not published |
| Batch input | Not published | $0.25 |
| Batch output | Not published | $1.50 |
Alibaba's list price for its own API, as compiled by models.dev and checked Oct 10, 2026, 09:00 UTC. Prices on cloud platforms and resellers can differ. Provider documentation
Verified against the provider's official pricing page on Oct 9, 2026. Official pricing page
Monthly cost by workload
| Workload | Qwen3.8 Flash | Seed 2.0 Pro |
|---|---|---|
| Chatbot1,000 in / 500 out tokens, 10,000 requests a day | $115.50/mo | $600.00/mo |
| RAG8,000 in / 500 out tokens, 5,000 requests a day | $215.25/mo | $825.00/mo |
| Coding agent50,000 in / 2,000 out tokens, 1,000 requests a day, 80% cached input | $92.40/mo | $450.00/mo |
Cost = input tokens × input price + output tokens × output price, 30 days a month. Cached input uses the cache read price. Cache write fees are not included.
Context and capabilities
| Qwen3.8 Flash | Seed 2.0 Pro | |
|---|---|---|
| Context | 1,000,000 tokens | 256,000 tokens |
| Max output | 131,072 tokens | 128,000 tokens |
| Input | text, image, video | text, image, video |
| Tool calling | Yes | Yes |
| Reasoning | Yes | Yes |
| Structured outputs | Yes | No |
Questions
- What is the price difference between Qwen3.8 Flash and Seed 2.0 Pro?
- Qwen3.8 Flash: $0.15 per 1M input tokens and $0.47 per 1M output tokens. Seed 2.0 Pro: $0.50 per 1M input tokens and $3.00 per 1M output tokens. For the Chatbot workload (1,000 in / 500 out tokens, 10,000 requests a day), that is about $115.50 per month for Qwen3.8 Flash and $600.00 for Seed 2.0 Pro.
- Which has the longer context window, Qwen3.8 Flash or Seed 2.0 Pro?
- Qwen3.8 Flash has the longer context window: up to 1,000,000 tokens, compared with 256,000 for Seed 2.0 Pro.
- Do Qwen3.8 Flash and Seed 2.0 Pro have prompt caching and batch prices?
- Qwen3.8 Flash: cached input $0.016 per 1M tokens; no batch price published. Seed 2.0 Pro: cached input $0.10 per 1M tokens; batch $0.25 per 1M input tokens and $1.50 per 1M output tokens.