01What Does Build Anything with DeepSeek V4 Mean?

Build anything with DeepSeek V4 means you can create mini apps, games, websites, and AI agents using only plain English prompts. You do not need coding skills. DeepSeek V4 is a free AI model that understands what you want and writes the code for you.

In this episode, Julian Goldie shows exactly how to do it using three methods: the chat, local setup with Olama, and powerful AI agent harnesses like OpenCode and Hermes.

The key is that DeepSeek V4 works at three levels. First, the chat itself is free and builds instantly. Second, you can run DeepSeek V4 Flash locally with Olama for free.

Third, you can plug DeepSeek into advanced agent tools that give it memory, browsing ability, and browser control. This lets you automate almost any repetitive task.

02Key Features of DeepSeek V4 You Need to Know

  • Free to use in the chat at chat.deepseek.com, with no credit card required.
  • Two modes: Instant for fast results and Expert for the most powerful model (DeepSeek V4 Pro).
  • DeepThink toggle turns reasoning on or off. Turn it on for complex tasks.
  • Web search option so the model can fetch live information from the internet.
  • Single HTML output lets you preview and download your app directly inside the chat.
  • DeepSeek V4 Flash is a lightweight version that is efficient with tokens and free within token limits when used through Olama.
  • DeepSeek V4 Pro is the coding benchmark master, beating models like Kimi K2.6 on coding tasks.

03How to Get Started with DeepSeek V4 Step by Step

  1. Go to chat.deepseek.com — this is the free chat interface.
  2. Choose between Instant mode (fast) or Expert mode (most powerful).
  3. Turn on DeepThink if you want the model to reason step by step.
  4. Turn on web search if your task needs live data from the internet.
  5. Type your prompt. For example: "Create a Pomodoro timer in single HTML."
  6. Add the phrase "single HTML" at the end so you can preview and download the result.
  7. Click Run to preview the app inside the chat, or Download to save the file.
  8. Repeat with new prompts in separate tabs to build multiple apps at once.

04How to Use DeepSeek V4 to Build Apps and Games

Julian demonstrates two quick builds. First, he prompts: "Create a Pomodoro timer in single HTML." DeepSeek V4 produces a working timer with start, pause, reset, short break, and long break buttons. It works perfectly on the first try using the Instant model.

Second, he prompts: "Build a simple, fun pong game in single HTML." The result is a playable pong game with a ball and paddles.

The trick is the single HTML keyword. This tells DeepSeek to output everything in one file so you can run a preview instantly. You do not need any extra tools.

Julian also shows OpenCode, a free AI agent harness that makes DeepSeek much better for coding. He opens multiple terminal windows, each running a different agent (OpenCode, Codex, Hermes, OpenClaw), all connected to DeepSeek V4 Flash. They work simultaneously building different projects.

05Results and Comparisons Shown in the Episode

Julian shows that DeepSeek V4 Pro crushes coding benchmarks: 80.6% on HumanEval+, 67.9% on SWE-Bench, 93.5% on LiveCodeBench, and an ELO score of 1554 on Codeforces. He compares API costs: DeepSeek V4 Flash costs a tiny fraction of Opus 4.7 and GPT 5.5. For example, Flash vs Opus is "insane" — orders of magnitude cheaper.

He also compares DeepSeek V4 Pro to Kimi K2.6, Minimax M2.7, and GLM 5.1. Kimi K2.6 has the highest overall score (54) on the AI Intelligence Index and the lowest hallucination rate (39%). But DeepSeek V4 Pro has the biggest context window (1 million tokens) and the best coding scores.

V4 Flash is the cheapest option overall.

06Tips, Limits, and Mistakes to Avoid with DeepSeek V4

  • Always use "single HTML" when building in the chat. Without it, you cannot preview or run the code.
  • DeepSeek V4 Flash is enough for 99% of users. You rarely need the full Pro model.
  • Rate limits can happen, especially on V4 Pro when many people use it.

    Switch to Flash if you hit them.

  • OpenClaw may fail with DeepSeek. Julian shows it giving up and asking for login. Hermes is smoother and breaks less.
  • Token limits apply on free cloud usage.

    Stay within them or run models locally.

  • Local models need a powerful computer. If yours is not strong, use cloud free tiers or lightweight models like Gemma4Flash.

Julian also warns: do not use the chat directly for complex tasks. The harness (like OpenCode or Hermes) makes a huge difference. The same model inside a harness produces far better outputs.

07Who Should Use DeepSeek V4 and Why It Matters

This is for anyone who wants to automate repetitive work without hiring developers. DeepSeek V4 lets you build tools, games, websites, and AI agents with plain English. You do not need to code.

Julian says: "Look at where you spend your time and then what you need to automate based on your time." That is the best way to decide what to build.

The episode shows 12 different ways to use DeepSeek, but Julian recommends picking one agent and using it for a week. He prefers Hermes for AI agents and OpenCode for coding. The real power comes when you connect DeepSeek to personal context tools like Omi and Obsidian, which give the agents 570+ memories about you.

This makes them 100 times more personalized and useful. It matters because AI automation is now free, accessible, and can save hours every day.

08How to Connect DeepSeek V4 to Agent Zero for Advanced Automation

Julian shows how to use Agent Zero, a free AI agent platform, with DeepSeek V4. First, install Agent Zero from its GitHub page. Then run it inside Docker.

Once it loads at localhost, go to Settings > Agent Config > Configure API Keys. Create an API key from OpenRouter, paste it in, and save. Then configure the model: search for "deepseek" and choose V4 Pro or V4 Flash.

Copy the model name, paste it into Agent Zero, and save.

You can also give Agent Zero memory by linking it to Obsidian. Start a new chat and say: "Use my local Obsidian folder for your context memory." Paste the folder path and save. The agent will then have access to all your notes and memories, making its responses highly personalized.

This lets it work on complex tasks autonomously for hours.

09Final Recap: All the Ways to Build Anything with DeepSeek V4

Julian summarizes 12 methods: (1) chat.deepseek.com for mini apps and games, (2) Olama for local or cloud models, (3) OpenCode for coding, (4) Codex with DeepSeek, (5) Hermes for AI agents, (6) OpenClaw for browser automation, (7) Agent Zero for autonomous tasks, (8) connecting agents to Telegram for phone control, (9) using Omi and Obsidian for deep personal context, (10) scheduling daily tasks (e.g., research latest AI news at 8am), (11) using local models with LM Studio or Ollama, and (12) using Manas agents on a phone.

The most important takeaway: start with one method. Pick the chat for simple builds, or Hermes for agents. Use it every day for a week.

Then add context from Obsidian and Omi. This single workflow can automate most of your daily digital tasks for free.