Qwen3 4B (free) API Cost Calculator
Estimate your monthly API costs for Qwen3 4B (free) from Qwen.
Pricing per 1M tokens
Pricing last verified: Mar 21, 2026
Estimate Your Costs
What are you building?
Cost Breakdown
Compare with Similar Models
| Model | Input/1M | Output/1M |
|---|---|---|
| Qwen3 Coder 480B A35B (free) Qwen | $0.00 | $0.00 |
| Qwen3 Next 80B A3B Instruct (free) Qwen | $0.00 | $0.00 |
| Qwen2.5 Coder 7B Instruct Qwen | $0.0300 | $0.0900 |
| Qwen2.5 7B Instruct Qwen | $0.0400 | $0.1000 |
| Qwen-Turbo Qwen | $0.0325 | $0.1300 |
Frequently Asked Questions
How much does Qwen3 4B (free) cost per token?
Qwen3 4B (free) is priced at $0.00 per 1M input tokens and $0.00 per 1M output tokens. Use the calculator above to estimate your monthly costs based on your usage volume.
What is the context window for Qwen3 4B (free)?
Qwen3 4B (free) has a context window of 41.0K tokens (40,960 tokens).
Does Qwen3 4B (free) support function calling (tool use)?
Yes, Qwen3 4B (free) supports function calling (also called tool use). You can define custom functions that the model can invoke as part of its responses.
How does Qwen3 4B (free) compare to similar models?
Qwen3 4B (free) costs $0.00 input and $0.00 output per 1M tokens. Qwen3 4B (free) is competitively priced compared to Qwen3 Next 80B A3B Instruct (free) ($0.00 input / $0.00 output per 1M tokens). See the "Compare with Similar Models" table above, or visit the Qwen3 Next 80B A3B Instruct (free) page at /tools/cost-calculator/qwen/qwen3-next-80b-a3b-instruct-free.