Qwen3.8 Flash
by Alibaba (Qwen) · qwen/qwen3.8-flash · #98 cheapest of 422 paid models
Prices updated Sep 19, 2026, 6:22 PM UTC · refreshed hourly
Qwen3.8 Flash is a multimodal reasoning model from Alibaba. It is suited for coding assistance, agentic workflows, visual understanding, document and codebase analysis, desktop interaction, chart analysis, and long-video analysis.
Compare vs:Claude Sonnet 5Claude Opus 4.6Claude Haiku 4.5GPT-5.6 Sol
Pricing
Input
$0.15
per 1M tokens
Output
$0.47
per 1M tokens
Blended (3:1)
$0.23
3 input : 1 output
Cache read
$0.016
per 1M cached tokens
Cache write
$0.20
per 1M tokens
Cache & batch economics
Effective prices for Qwen3.8 Flash with prompt caching.
| Cache hit rate | Effective blended $/1M | Example request* | vs no cache |
|---|---|---|---|
| 0% | $0.23 | $0.0158 | — |
| 50% | $0.18 | $0.00907 | −42% |
| 90% | $0.14 | $0.00371 | −76% |
*Example: 100K sticky context + 2K new input + 1K output. Batch discount is an approximate 50% off list rates (available for OpenAI / Anthropic / Google — not flagged for this creator). Confirm on the vendor’s pricing page.
What a request costs
| Workload | Input tokens | Output tokens | Cost / request | Cost / 1K requests |
|---|---|---|---|---|
| Short chat message | 500 | 300 | $0.000216 | $0.216 |
| Document summary | 8,000 | 1,000 | $0.00167 | $1.67 |
| Codebase question (RAG) | 30,000 | 2,000 | $0.00544 | $5.44 |
| Long-context analysis | 150,000 | 5,000 | $0.0249 | $24.85 |
Specs
Context window
1M
tokens
Max output
131K
tokens
Input modalities
text, image, video
Tokenizer
Qwen