OpenClaw API Costs in 2026: Claude, ChatGPT and Cheaper Options

The single biggest cost surprise in running OpenClaw isn't the server — it's the model. And in April 2026 that surprise got bigger: Anthropic blocked OpenClaw instances from authenticating with Claude Pro/Max subscription accounts, cutting off an estimated hundred-thousand-plus agents that had been riding flat-rate subscriptions. Overnight, users who paid $100–200/month flat went to metered API billing — some reporting $800+ months before they adjusted.

The two costs of running OpenClaw

• Hosting: fixed and small — from $12/month for a dedicated managed server (see pricing).
• Model usage: variable and dominated by how chatty and tool-heavy your agent is. This is the one to manage.

Your options after the Claude cutoff

1. Claude via API key (metered)

Still the strongest model experience for agent work. Get an API key from the Anthropic console and set spending limits from day one. A light personal agent (a few dozen interactions a day, modest memory) typically lands in the tens of dollars per month; heavy tool use, browser automation and big memory contexts are what multiply the bill.

2. Sign in with ChatGPT

OpenAI still allows subscription-based sign-in for OpenClaw. If you have a ChatGPT Plus or Pro subscription, connecting it to your agent gives you flat-rate usage instead of per-token billing — currently the most cost-predictable way to run a busy agent. ClawHost supports ChatGPT sign-in directly from the dashboard.

3. Cheaper models for routine work

Not every message needs a frontier model. Gemini Flash, Groq-hosted open models and Mistral are dramatically cheaper per token, and OpenClaw lets you switch providers per instance. A common pattern: a cheap default model for chat and reminders, upgrading to Claude or GPT only for complex tasks.

How to keep the bill predictable

1. Set hard spending limits in your provider's console before connecting the key.
2. Watch memory growth. Long-running conversations expand the context sent with every message — the silent bill-multiplier.
3. Audit skills. Skills that loop tool calls (research, scraping, monitoring) consume tokens even when you're not chatting.
4. Consider subscription auth where allowed. Flat-rate beats metered if your agent works hard every day.

Where ClawHost fits

ClawHost is BYOK — bring your own API key from 15+ providers, or sign in with ChatGPT. We never proxy or mark up your model usage, so your API relationship (and its pricing) stays directly between you and the provider, while the hosting stays a flat $12–19/month.