modelsdev Qwen/Qwen3.5-4B (siliconflow-cn/qwen/qwen3.5-4b)
modelsdev Qwen/Qwen3.5-4B is free: it is listed at no charge per 1M input tokens and no charge per 1M output tokens (community cross-check, https://models.dev/), verified 2026-10-24 11:44 UTC.
Last verified 2026-10-24T11:44:01+00:00 · Source: https://models.dev/ (community cross-check, waak source modelsdev)
No first-party source is read for this model yet; this value is a community cross-check and can lag the provider.
Price
- Input
- Free / 1M tokens
- Output
- Free / 1M tokens
- This price since
- 2026-10-19T22:42:32+00:00
- FX used
- 1 EUR = 1.1225 USD (ECB)
- Billing
- per_token
Specification
- Context window (tokens)
- 262,144
- Max output
- 65,536
- Open weights
- yes
- Reasoning
- yes
- Source kind
- community
- Vendor
- siliconflow-cn
- Region
- global
- Listing
- listing not verifiable
aggregator / community mirror: no first-party public page to check against - First seen
- 2026-10-19T22:42:32+00:00
- SKU id
llm/modelsdev/siliconflow-cn/qwen/qwen3.5-4b
Other listings of this model
Sources can disagree. The provider's own listing is first-party; LiteLLM, OpenRouter and models.dev are community cross-checks. Differences are shown, not resolved.
| SKU | Source | Input / 1M | Output / 1M | vs this page | Last verified |
|---|---|---|---|---|---|
| llm/modelsdev/empiriolabs/qwen3-5-4b | modelsdev (community cross-check) | 0.04 | 0.07 | differs | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/merge-gateway/qwen/qwen3.5-4b | modelsdev (community cross-check) | 0.04 | 0.07 | differs | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/qvac/qwen3.5-4b | modelsdev (community cross-check) | 0.00 | 0.00 | agrees | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/thinkingmachines/qwen/qwen3.5-4b | modelsdev (community cross-check) | 0.33 | 1.005 | differs | 2026-10-24T11:44:01+00:00 |
| llm/modelsdev/thinkingmachines/qwen/qwen3.5-4b:peft:262144 | modelsdev (community cross-check) | 0.33 | 1.005 | differs | 2026-10-24T11:44:01+00:00 |
Price history (90 days)
| Observed (UTC) | Price | USD | EUR | Output / 1M | Snapshot |
|---|---|---|---|---|---|
| 2026-10-19T22:42:32+00:00 | Free | 0.00 | 0.00 | 0.00 | #34 |
Each row is a change point: the price held from that moment until the next row. Full history: JSON · CSV.
Changes
No changes recorded since first seen.
API: /v1/skus/llm/modelsdev/siliconflow-cn/qwen/qwen3.5-4b
Cite this
Free to reuse under CC BY 4.0 with this credit. The numbers are list prices, not transacted prices.
InfraRabbit (2026). modelsdev Qwen/Qwen3.5-4B [data as of 2026-10-24]. https://infrarabbit.com/llm/modelsdev/siliconflow-cn/qwen/qwen3.5-4b (accessed 2026-10-24). List prices, not transacted prices. CC BY 4.0.
BibTeX
@misc{infrarabbit_llm_modelsdev_siliconflow_cn_qwen_qwen3_5_4b_2026,
author = {{InfraRabbit}},
title = {modelsdev Qwen/Qwen3.5-4B},
year = {2026},
howpublished = {\url{https://infrarabbit.com/llm/modelsdev/siliconflow-cn/qwen/qwen3.5-4b}},
note = {Data as of 2026-10-24; accessed 2026-10-24; list prices, not transacted prices; CC BY 4.0}
}