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Open source alternatives to Gemini 3.8 Flash

3 open source tools do the job of Gemini 3.8 Flash. The most starred is Step-3.5-Flash, with 2k stars. Verified on GitHub. About Gemini 3.8 Flash

Gemini 3.8 Flash homepage
Gemini 3.8 FlashFree
Step-3.5-Flash homepage
Step-3.5-Flash2k stars · Apache 2.0GitHub

All 3 alternatives

Questions about alternatives to Gemini 3.8 Flash

What is the best open source alternative to Gemini 3.8 Flash?

By GitHub stars it is Step-3.5-Flash, with 2,091 stars and a commit on 3 Apr. Choose Step-3.5-Flash when you want a fast open model with a 256K context for agents, self-hosted or on StepFun's API.

Is there a free alternative to Gemini 3.8 Flash?

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 Gemini 3.8 Flash for. Choose DeepSeek V4.1 Flash when price matters most: it costs $0.30 / $1.20 per million tokens at peak hours, half that off-peak, and can write up to 384K tokens in one answer. Choose MiMo-V2.6-Flash when you want a 309B omnimodal model for coding and agents under MIT that you can download.

Which Gemini 3.8 Flash alternatives can I host on my own server?

All 3: Step-3.5-Flash, DeepSeek V4.1 Flash and MiMo-V2.6-Flash. 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 Step-3.5-Flash, last changed on 3 Apr. A recent commit shows the project is kept up, not that it will stay that way.

What licences do they use?

MIT (2), Apache 2.0 (1). MIT, BSD and Apache let you change and reuse the code freely.

What do I lose by leaving Gemini 3.8 Flash?

The hosting. Gemini 3.8 Flash'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.