Qwen3.5 4B
Qwen3.5 4BAlternatives?
CheaperGPT OSS 20BhighOpen+11%-40%$0.011Context: 262K → 131K+2BetterGPT-6 Lunalow×2+233%$0.005Function calling only with none · Chat Completions+3IOpenK2 Horizon 7Bthinking+84%+775%$0.30 / $1.20Memory (4-bit): 2.3 GB → 4.5 GB+1
CheaperNemotron 3.5 LightningthinkingOpensame-19%$0.079Memory (4-bit): 2.3 GB → 20 GB+1
CheaperGranite 4.2 3BthinkingOpen-33%-13%$0.006Context: 262K → 128K+1GPT OSS 20BhighOpen+11%-40%$0.011Context: 262K → 131K+2Nemotron 3.5 LightningthinkingOpensame-19%$0.079Memory (4-bit): 2.3 GB → 20 GB+1Granite 4.2 3BthinkingOpen-33%-13%$0.006Context: 262K → 128K+1Qwen3 0.6BthinkingOpen-43%-17%$0.04 / $0.08Context: 262K → 33K+1Qwen3.5 0.8Bnon-thinkingOpen-49%-67%$0.01 / $0.05GPT-6 Lunalow×2+233%$0.005Function calling only with none · Chat Completions+3GPT-5.6 Lunalow+100%+650%$0.01
MiMo v2.5thinkingOpen×2.7+192%$0.019Memory (4-bit): 2.3 GB → 186 GB
Claude Haiku 5.5low×2.7+233%$0.024Remove sampling parameters+5
Mercury 2high+73%+525%$0.039Context: 262K → 128K+1
Gemma 4 12BthinkingOpen+58%+150%$0.10 / $0.30Context: 262K → 256K+1Qwen 3.5 9BthinkingOpen+50%+54%$0.21Memory (4-bit): 2.3 GB → 4.8 GBIK2 Horizon 3.7BthinkingOpen+40%+775%$0.30 / $1.20Memory (4-bit): 2.3 GB → 2.5 GB+1TFalcon H1R 7BthinkingOpen+11%——Context: 262K → 256K+2Qwen3.8 Max (0902)thinking×4.3—$5.41Qwen3.8 2.4T A95BthinkingOpen×4.3—$2.16Memory (4-bit): 2.3 GB → 1,468 GB+6Qwen3.7 Maxthinking×4.1—$1.15No image inputQwen3.8 FlashthinkingOpen×3.8—$0.37Memory (4-bit): 2.3 GB → 108 GB+6Qwen3.7 Plusthinking×3.6—$0.22Qwen3.6 Max Previewthinking×3.1—$1.30 / $7.80No image input+1Qwen3.5 397B A17BthinkingOpen×2.9—$0.47Memory (4-bit): 2.3 GB → 242 GBQwen3 Max Thinkingthinking×2.8—$1.20 / $6Context: 262K → 256K+1All Alibaba (Qwen) models →Run it yourself
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3 versionsBenchmarks
in Chat & KnowledgeFAQ
How much does Qwen3.5 4B cost?›
$0.03 per 1M input tokens and $0.15 per 1M output tokens (cheapest host: DeepInfra).
Is Qwen3.5 4B free to use?›
There is no free API; the cheapest paid price is $0.03 per 1M input tokens. The weights are open, so you can run it yourself.
How good is Qwen3.5 4B, and what is it best at?›
#192 of 334 in Chat & Knowledge, #95 of 239 in Coding, #36 of 242 in Agents & Tool Use, #110 of 245 in Writing & Language, #79 of 124 in Vision & Documents. Strongest at: Tool calling.
Is Qwen3.5 4B better than Qwen3 4B 2507 Instruct?›
On Humanity's Last Exam, Qwen3.5 4B scores 9.9 vs 4.5 — higher.
How can I use Qwen3.5 4B?›
Through the API of DeepInfra, Featherless.
What is the context window of Qwen3.5 4B?›
262K tokens.
When was Qwen3.5 4B released? Is there a newer version?›
Released 2026-03-02. It is the current version in its line.
Is Qwen3.5 4B open source?›
Yes, the weights are open (Apache-2.0 licence).
Can I run Qwen3.5 4B locally?›
The weights are open and can be self-hosted; hardware needs are not confirmed yet.
Can Qwen3.5 4B read images?›
It accepts text and images as input.
What is Qwen3.5 4B?›
Qwen3.5 4B is an open-weights language model from Alibaba (Qwen), released Mar 2026, the successor to Qwen3 4B 2507 Instruct.
What are the best alternatives to Qwen3.5 4B?›
GPT OSS 20B (cheaper), GPT-6 Luna (better), K2 Horizon 7B (open weights).