StepFun's 10B vision-language model that fits in 24GBOpen source alternatives to Hunyuan Vision 1.5 Thinking
3 open source tools do the job of Hunyuan Vision 1.5 Thinking. The most starred is Step3-VL-10B, with 413 stars. Verified on GitHub. About Hunyuan Vision 1.5 Thinking
Hunyuan Vision 1.5 ThinkingPaid
Step3-VL-10B413 stars · Apache 2.0GitHubAll 3 alternatives
Questions about alternatives to Hunyuan Vision 1.5 Thinking
What is the best open source alternative to Hunyuan Vision 1.5 Thinking?
By GitHub stars it is Step3-VL-10B, with 413 stars and a commit on 21 Jan. Choose Step3-VL-10B when you want a reasoning vision model on your own GPU: its 10B weights are Apache 2.0, and it reasons over up to 64K tokens in its standard mode.
Is there a free alternative to Hunyuan Vision 1.5 Thinking?
Yes. The code of all 3 is public under Apache 2.0 or MIT, so you can use them with no licence fee. Running one yourself costs the server and your time to look after it, and some makers also sell a hosted plan.
How do I choose between them?
Start from the job you use Hunyuan Vision 1.5 Thinking for. Choose GLM-4.6V when you want a vision model billed in US dollars with a 128K context and video input; it costs $0.3 / $0.9 per million tokens, and its MIT-licensed weights are free to download. Choose Qwen3.6-27B when you need long context and video input: Alibaba's Model Studio serves it with up to 256K tokens at $0.60 / $3.60 per million tokens, and its Apache 2.0 weights are open.
Which Hunyuan Vision 1.5 Thinking alternatives can I host on my own server?
All 3: Step3-VL-10B, GLM-4.6V and Qwen3.6-27B. Each tool's page says what it needs to run.
Which ones are still being worked on?
0 of the 1 we track had a commit in the last 30 days. The quietest is Step3-VL-10B, last changed on 21 Jan. A recent commit shows the project is kept up, not that it will stay that way.
What licences do they use?
Apache 2.0 (2), MIT (1). MIT, BSD and Apache let you change and reuse the code freely.
What do I lose by leaving Hunyuan Vision 1.5 Thinking?
The hosting. Hunyuan Vision 1.5 Thinking's maker runs the servers for you; with an open source tool the updates, backups, security fixes and support are yours, unless you take the maker's hosted plan. Features differ too, so check what each one imports and exports before you move your data.