01What DeepSeek V4 Flash Is and How It Works
DeepSeek V4 Flash is a new AI model from DeepSeek that you can run for free through Ollama. It works as a cloud model, meaning you don't download it to your computer. Instead, it runs on Ollama's servers, so you can access it instantly without needing expensive hardware.
In this episode, Julian shows how DeepSeek V4 Flash works inside a terminal and with various AI agents. The model can chat, code, automate tasks, and browse the web depending on the tool you use with it. It's a flexible model that adapts to different jobs based on the 'harness' you put it in.
The key idea is that the model is the engine, and the tool you use controls it. For example, putting DeepSeek V4 Flash inside a coding agent makes it good at coding, while using it as a simple chat gives you basic conversation abilities.
02Main Benefits and Features of DeepSeek V4 Flash
- Free to use – You can try it without paying anything.
- Cloud-based – No download needed; it runs on Ollama's servers.
- Works with many AI agents – Claude Code, Codex, OpenCode, OpenCore, and Hermes.
- Fast setup – Takes about two minutes to get running.
- Great for coding – Builds websites, games, and tools easily.
- Good for simple chat – Works well as a terminal chat bar.
One big advantage is that you don't need any special hardware. Since it's a cloud model, even a basic computer can use it. This makes it accessible for anyone who wants to try advanced AI without investing in expensive equipment.
Julian also notes that the model thinks in Chinese but replies in English, which is a minor quirk but doesn't affect performance. The model handles tasks smoothly once you set it up with the right tools.
03How to Set Up DeepSeek V4 Flash with Ollama
- Open your terminal. On a Mac, press Command + Space, type 'terminal', and hit Enter.
- Copy the command to install or update Ollama from the episode's description, then paste it into your terminal and run it.
- Make sure Ollama is the latest version. This is important even if you already have it installed.
- Go to ollama.com/models and select the DeepSeek V4 Flash model.
- Copy the command shown for DeepSeek V4 Flash and paste it into your terminal to start using it.
- Test it by typing a simple question like 'Are you working?' to confirm it responds.
Once you do this, DeepSeek V4 Flash runs inside your terminal. You can talk to it directly without needing any other tools. It's that simple.
For more advanced use, you can open new tabs in your terminal by pressing Command + T on a Mac. This lets you run multiple AI agents at once, like Claude Code and OpenCode, alongside DeepSeek V4 Flash.
04Using DeepSeek V4 Flash with Different AI Agents
Julian shows how to use DeepSeek V4 Flash with several tools, each with its own strength. First, he runs it with OpenCore to browse the web and control a browser. He asks it to 'go and speak to ChatGPT,' and it opens the site automatically.
Next, he uses Hermes to schedule a daily task: 'schedule in researching the latest AI automation news daily for me.' Hermes initializes and starts working on it without extra prompts.
For coding, he uses OpenCode to build a blog post and Codex to create a ping pong game. Both tools handle the coding directly, planning and writing the files for you. He notes that DeepSeek V4 Flash works well inside these harnesses but struggles with web search when used directly in the terminal.
The main point is that the tool you pair with the model changes what it can do. OpenCode and Codex are for coding, OpenCore is for browser automation, and Hermes is for smooth agent tasks.
05Results and Comparisons from the Episode
Julian tested DeepSeek V4 Flash across multiple tools and shared his results. OpenCore worked perfectly for opening a browser and navigating to ChatGPT. It was fast and easy, showing strong browser automation skills.
Hermes handled scheduled tasks reliably. Julian describes it as a 'smooth AI agent' that actually gets the job done. He gives Hermes about a 100% success rate, while OpenCore is more like 50/50 for completing tasks.
For coding, both OpenCode and Codex delivered working results. OpenCode built a complete blog post, and Codex created a playable ping pong game, though it sometimes gave errors along the way. In the terminal, DeepSeek V4 Flash worked well for chat but struggled with web searches, which surprised Julian.
Overall, the comparisons show that the model performs differently depending on the harness, and picking the right tool matters for your specific need.
06Tips, Limits, and Mistakes to Avoid with DeepSeek V4 Flash
One key tip is to always update Ollama to the latest version, even if you already have it. Without the update, DeepSeek V4 Flash may not work correctly. This is a common mistake that causes setup issues.
Be aware of usage limits on the free plan. You can try the model for free, but there are caps on how much you can use it. If you need more, you can upgrade to a paid plan later.
Don't expect the terminal version to be good at everything. Julian found that DeepSeek V4 Flash in the terminal struggles with web searches and agentic tasks. For those jobs, use a harness like OpenCore or Hermes instead.
When running multiple agents, keep them in separate tabs to stay organized. This makes it easier to switch between tools and run them in parallel, which boosts your productivity significantly.
07Who Should Use DeepSeek V4 Flash and Why It Matters
DeepSeek V4 Flash is for anyone who wants a powerful AI model without paying for it. It's especially useful for developers, content creators, and automation enthusiasts who need coding help or task automation. Because it's cloud-based, even beginners with basic hardware can use it.
Julian emphasizes that the real power comes from pairing the model with the right harness. The harness controls the API and tells it what to do, making the model much more capable than using it alone. This means you can build websites, automate research, and schedule tasks all for free.
It matters because it lowers the barrier to advanced AI tools. You don't need expensive subscriptions or high-end computers. Just set up Ollama, connect DeepSeek V4 Flash, and you're ready to go.
