Model prices / Alibaba / Qwen3.5 4B
Qwen3.5 4BOpen weights
Alibaba · released 2026-03-02
No price from the maker itself is on record for Qwen3.5 4B. The lowest of 5 providers is EmpirioLabs AI: $0.04 per 1M input tokens and $0.07 per 1M output tokens (as of 2026-11-12). Context window: 262K tokens, up to 32.8K output tokens per request.
Price by providerUSD per 1M tokens
| Provider | Input | Output | Cached | Notes | |
|---|---|---|---|---|---|
 EmpirioLabs AILowestqwen3-5-4b | $0.04 | $0.07 | $0.02 | Lowest | Official docs |
MMerge Gatewayqwen/ | $0.04 | $0.07 | — | Official docs | |
TThinking MachinesQwen/ | $0.33 | $1.005 | $0.066 | Official docs | |
TThinking MachinesQwen/ | $0.33 | $1.005 | $0.066 | Official docs | |
QQVACqwen3.5-4b | $0 | $0 | — | Official docs | |
 SiliconFlow (China)Qwen/ | $0 | $0 | — | Official docs |
Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.
About
Small Qwen3.5 multimodal model for low-cost chat, reasoning, and tool use
Description from models.dev.
Specs
- Type
- Text
- Context
- 262K
- Max output
- 32.8K
- Input
- Text, Image
- Output
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- Structured output
- No
- Knowledge cutoff
- 2025-04
- Open weights
- Yes
- Released
- 2026-03-02
Source
Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.