Qwen-Flash vs Qwen3.5-Flash
Side-by-side comparison of API pricing, specs, benchmarks, and capabilities
Qwen-Flash is 21.4% cheaper on blended cost ($0.138 vs $0.175/Mtok)
| Specification |
by Alibaba
|
by Alibaba
|
|---|---|---|
| Overview | ||
| Status | Current budget | Current budget |
| Released | Oct 1, 2025 | Feb 23, 2026 |
| Pricing per million tokens | ||
| Input | $0.050/Mtok | $0.100/Mtok |
| Output | $0.400/Mtok | $0.400/Mtok |
| Blended avg | $0.138/Mtok | $0.175/Mtok |
| Price basis | Alibaba Model Studio International (Singapore) list price, 0<Token≤256K tier. The 256K<Token≤1M tier is billed higher ($0.25/$2.00). | Alibaba Model Studio International list price, a single 0<Token≤1M tier, so the rate does not change with input size. The vendor's table prices the `qwen3.5-flash` alias and its dated snapshot (2026-02-23, which the alias currently resolves to) at identical rates. The row is labelled as eligible for a 50% batch-inference discount and a context-caching discount; both are billing modes a buyer opts into, so the standard real-time rate is the one tracked here. No standalone cached-input rate is printed, so cached input is left unset rather than assumed. Gateway resellers quote lower routed rates ($0.065/$0.26). |
| Specifications | ||
| Context window | 1M tokens | 1M tokens |
| Parameters | Proprietary | Proprietary |
| Speed (TPS) | — | — |
| Modalities | ||
| Input |
text
|
text
|
| Benchmarks sources: n/a / LMSYS Chatbot Arena (UC Berkeley) | ||
| Independent composite scores each on its own scale — not part of the average above | ||
| LMSYS Chatbot Arena | — | 1397 ELO |
| Providers | ||
| Available from |
Alibaba — $0.050/$0.400/Mtok
|
Alibaba — $0.100/$0.400/Mtok
|
Cost at scale
1M tokens · 50/50 input/output| Volume | Qwen-Flash | Qwen3.5-Flash | Savings |
|---|---|---|---|
| 1M tokens | $0.14 | $0.18 | $0.04 (22.9%) |
| 10M tokens | $1.38 | $1.75 | $0.38 (21.7%) |
| 100M tokens | $13.75 | $17.5 | $3.75 (21.4%) |
| 1000M tokens | $137.5 | $175 | $37.5 (21.4%) |
When to pick which
distilled from the pricing and spec data above
Pick Qwen-Flash if…
- cost dominates: $0.138/Mtok blended vs $0.175 — 21.4% less on the same 50/50 token mix
Pick Qwen3.5-Flash if…
- this pairing gives Qwen3.5-Flash no edge on price, context, cache discount, or measured performance — pick it only for qualitative fit (ecosystem, compliance, model behavior on your prompts)
Try Qwen-Flash on Alibaba
The cheaper option here — Qwen-Flash costs $0.138/Mtok blended on Alibaba.
Summary
Qwen-Flash by Alibaba costs $0.050/Mtok input and $0.400/Mtok output, with a 1M-token context window. It supports text input.
Qwen3.5-Flash by Alibaba costs $0.100/Mtok input and $0.400/Mtok output, with a 1M-token context window. It supports text input.
On a blended cost basis, Qwen-Flash is 21.4% cheaper than Qwen3.5-Flash.
Note: Pricing is per million tokens. Actual costs vary with usage patterns, prompt caching, and batch discounts. Always verify against official provider pricing pages.
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