Qwen3.5 4B: API pricing, providers and specs
Qwen3.5 4B is a text model by Alibaba. 4 providers serve it, from $0.07 to $0.30 /1M; the lowest price is at EmpirioLabs AI.
How Qwen3.5 4B compares
Against the 737 text models on the site priced the same way.
- Cheap for its class: at $0.07 /1M, its lowest price undercuts 96% of comparable models (median $1.10).
- Its 262K-token context window is larger than 45% of them (median 262K), about 390 pages of text.
- 4 providers serve it; 60% of comparable models have fewer.
- Its weights are open under the Apache 2.0 license: commercial use allowed.
Qwen3.5 4B prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
 EmpirioLabs AI | $0.04/1M | $0.07/1M | $0.02/1M | 262K |
 Requesty | $0.05/1M | From$0.07/1M | $0.005/1M | 262K |
 Poe | $0.04/1M | $0.071/1M | $0.02/1M | 262K |
 Prime Inference | $0.10/1M | $0.30/1M | $0.01/1M | — |
- EmpirioLabs AI$0.07
- RequestyFrom$0.07
- Poe$0.071
- Prime Inference$0.30
Specs
- Type
- Text
- Maker
- Alibaba
- Inputs
- Image, Text, Video
- Outputs
- Text
- Context
- 262K≈ 390 pages of text
- Max output
- 262K
- Capabilities
- Prompt caching, JSON, Tool calling, Vision
- Released
- Feb 27, 2026
- License
- Apache 2.0commercial use allowed
- Open weights
- Yes, downloadable
- Parameters
- 4.7B
- Monthly searches
- 7K
1 uncensored versions · See them
Alternatives to Qwen3.5 4B
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Qwen3.5 4Bthis model | $0.07/1M | 262K | — | 4 |
 DeepSeek V4.1 Flash | $0.03/1M | 1.05M | 1664 | 39 |
 GLM-5.3-Flash | $0.20/1M | 1.05M | 1608 | 45 |
| DeepSeek V4 Flash | $0.17/1M | 1.05M | — | 26 |
| GPT OSS 120B | $0.14/1M | 131K | 1366 | 32 |
 MiMo-V2.6-Flash | $0.10/1M | 1.05M | 1634 | 22 |
| GPT OSS 20B | $0.09/1M | 131K | 1287 | 26 |
| Mercury 2.5 | $0.15/1M | 260K | — | 5 |
 Solar Pro 4 | $0.127/1M | 524K | — | 3 |
More from Alibaba
Qwen-Image-2.1Alibaba$0.02/imgQwen3.8 2.4T A95BAlibaba$4.11/1MWan3.0Alibaba$0.025/secQwen3.8 27BAlibaba$0.50/1MWan 2.2Alibaba$0.01/runQwen3.8 Flash NextAlibaba$0.376/1MQwen2-1.5B-InstructAlibaba$0.20/1MQwen3.5 FlashAlibaba$0.287/1MQwen3.5 4B FAQ
The lowest price for Qwen3.5 4B is $0.07 /1M, at EmpirioLabs AI.
EmpirioLabs AI, at $0.07 /1M. 4 providers serve Qwen3.5 4B; the table above lists every one with its price.
Qwen3.5 4B reads up to 262K tokens per request and writes up to 262K.
Yes. Qwen3.5 4B's weights can be downloaded from its maker's Hugging Face page, under the Apache 2.0 license.
About 4.7B, as the safetensors metadata of its official Hugging Face repo states.
4 API providers serve Qwen3.5 4B. Compare their prices above, or open a provider to see everything it offers.
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