The Ugly Truth of "Free AI Agents" — The Prison of Daily Limits and Throttling

"Lured by the sweet marketing, I signed up for a platform with a light heart, and within just a few hours I want to share the cruel reality that blocked me."

I watched a YouTube video claiming "1 million won a month in revenue with free AI agents" and signed up with a flutter of excitement. To start from the conclusion: the day was over before I could even use a skill.

1. A Few "Hellos" and That Is It? The Wall of Daily Rate Limits

The first barrier I ran into was an absurdly tight daily call limit.

What Actually Happened

09:00 — First run after signing up. "Link my email"
09:02 — "Summarize my recent Obsidian notes"
09:05 — "Just as a test, summarize 3 news articles"
09:07 — Error: "You have exceeded the daily usage limit. Try again tomorrow."

It ended after 3 tries. I never even got to use a proper automation feature.

Daily Free Limits by Major Platform (as of September 2026)

"I connected 70 skills, but I can only use it 20 times a day." — that is the reality of free agents.

2. The Suffocating Traffic Degradation and Throttling

What is even more absurd is the "deliberate traffic degradation" that makes the tool unusable even when the limit has not run out.

Three Ways Free Users Are Tormented

1) Priority Deprioritization

• During peak paid-user hours (10 a.m. to 6 p.m.), free users' requests get pushed back
• The same question gets a response 3-10x slower than paid

2) Artificial Throttling

• The agent sits frozen for several minutes just showing a message like "Checking mail and passing the summary to Obsidian..."
• It claims to prevent traffic overload, but in reality it is a structure to push you toward paying

3) Model Downgrade

• Free users are automatically assigned the cheapest model
• It advertises GPT-4o but actually responds with GPT-4o-mini
• Output quality drops noticeably on coding work

Speed Comparison (Based on Real Measurements)

A free platform can be slower than local AI. How many people know this?

3. The Five Structural Traps of Free Agents

4. Tips to Use Free Tools Most Efficiently

Tip 1: Register Multiple Platforms and Rotate

Mon-Tue: Claude Free (20-40)
Wed-Thu: ChatGPT Free (10-20)
Fri: Gemini Free (50)
Weekend: Copilot Free (remaining of 2,000/month)

Bet it all on one and it is over in a day. Rotating four gives you 100+ uses a week.

Tip 2: Lay a Local AI Model as the Default

The key is to handle everyday questions with local AI and spend paid credits only on important work.

Tip 3: Set Up the Web Search MCP with Brave by Default

The Brave Search MCP renews at 2,000 free calls a month. If your AI agent needs web search, always connect it. (For detailed setup, see Web Search MCP, Fully Explained.)

Tip 4: Control Cost with OpenCode BYOK

OpenCode has a BYOK structure where you connect your own API key, so:

• DeepSeek V4.1 Flash API: input $0.003 per 1M tokens (essentially free)
• Top up $10 a month and you can use a production-grade agent nearly without limits
• Complete freedom from the constraints of free platforms

Tip 5: Offline Work Is Always Local

No internet needed → Ollama + Qwen3 8B
Internet needed → Brave MCP (2,000 free a month)
Complex reasoning → DeepSeek API ($0.003/1M tokens)

5. Realistic Alternatives

For 10,000 won a month you get 10x the performance of a free platform. Rather than wasting time and stressing out on a free platform, using a cost-effective API is far more sensible.

Conclusion: The Real Price of Free

"Free is the most expensive thing in the world."

Use free agents only for testing. Handing your entire workflow to a free agent is impossible. It is better to use a cost-effective paid model (DeepSeek, Qwen API, etc.) — less stress and higher productivity.

Stop being fooled by YouTube's sweet free marketing and wasting your time and emotions.

Related posts:

• The Truth About AI Agent Token Costs
• Web Search MCP, Fully Explained
• 20,000 Tokens for "Hello"? The Trap of Excessive Reasoning