Running OpenClaw is incredible — until you check your API bill. A typical power user sending 100+ messages a day through Claude Opus or GPT-4 can easily spend $200-$300 per month on tokens alone. That is before VPS costs, domain fees, or anything else.
But here is the thing: most of that spending is waste. Redundant context, oversized responses, expensive models doing cheap work. After months of running OpenClaw instances for hundreds of users, we have identified seven techniques that consistently cut token costs by 60-80% without sacrificing quality.
This is not theory. These are real numbers from real OpenClaw deployments. Let's walk through each one.
Understanding Where Your Tokens Go
Before optimizing, you need to understand the cost structure. Every OpenClaw interaction involves tokens flowing in two directions:
- Input tokens — everything sent to the model: your system prompt, conversation history, skill definitions, user message
- Output tokens — the model's response back to you
Here is a rough breakdown of where tokens go in a typical OpenClaw conversation:
| Component | % of Input Tokens | Typical Size |
|---|---|---|
| System prompt + skills | 35-45% | 2,000-6,000 tokens |
| Conversation history | 30-40% | 1,500-8,000 tokens |
| User message | 5-10% | 50-200 tokens |
| Tool calls / context | 10-20% | 500-3,000 tokens |
Notice something? Your actual message — the thing you're trying to accomplish — is only 5-10% of the input. The rest is overhead. That is where the savings are.
For reference, here are current API prices for the models most commonly used with OpenClaw (as of March 2026):
| Model | Input (per 1M tokens) | Output (per 1M tokens) |
|---|---|---|
| Claude Opus 4 | $15.00 | $75.00 |
| Claude Sonnet 4 | $3.00 | $15.00 |
| Claude Haiku 3.5 | $0.80 | $4.00 |
| GPT-4o | $2.50 | $10.00 |
| GPT-4o-mini | $0.15 | $0.60 |
The price gap between models is enormous — Opus costs 100x more per input token than GPT-4o-mini. This gap is the foundation of most cost optimization.
Technique 1: Memory Distillation — Save 30-40%
This is the single highest-impact optimization. By default, OpenClaw sends the full conversation history to the model on every turn. A 50-message conversation can easily accumulate 15,000-20,000 tokens of history. You are paying for the model to re-read everything you have already discussed, every single time.
Memory distillation compresses old conversation turns into a short summary while keeping only the last few exchanges in full.
How It Works
Instead of sending 50 raw messages as context, you send:
- A 200-300 token summary of the conversation so far
- The last 3-5 messages in full
- The user's current message
This replaces 15,000 tokens of history with roughly 1,500 tokens — a 90% reduction in the history portion of your input.
Setup in OpenClaw
In your OpenClaw configuration, enable memory distillation:
memory:
strategy: distill
keep_recent: 5
distill_model: gpt-4o-mini
distill_interval: 10 # Distill every 10 messagesThe key insight: use a cheap model (GPT-4o-mini at $0.15/1M input tokens) to generate the summary. The summary does not need to be brilliant — it just needs to capture key facts and decisions. Then your expensive model gets a concise context instead of a bloated one.
The Math
Assume you use Claude Opus 4 and send 100 messages per day, with an average conversation length of 30 messages:
Before distillation:
- Average history per turn: 8,000 input tokens
- Daily history tokens: 100 turns x 8,000 = 800,000 input tokens
- Monthly cost (history only): 800K x 30 days x $15/1M = $360/month
After distillation:
- Average history per turn: 1,200 input tokens (summary + 5 recent messages)
- Daily history tokens: 100 turns x 1,200 = 120,000 input tokens
- Distillation cost (GPT-4o-mini): ~30K tokens/day x $0.15/1M = ~$0.14/month
- Monthly cost (history only): 120K x 30 days x $15/1M = $54/month
Savings: $306/month on history alone — an 85% reduction in this component.
If you are not sure where to start, start here. Memory distillation alone can cut your total bill by 30-40%.
Technique 2: Model Mixing — Save 20-40%
Not every message needs the smartest (and most expensive) model. When you ask your OpenClaw agent "What time is my meeting tomorrow?" or "Remind me to buy milk," that does not require Claude Opus at $15/1M input tokens.
Model mixing routes simple tasks to cheap models and reserves expensive models for complex reasoning.
Routing Strategy
Set up a tiered model configuration:
| Task Type | Model | Cost (Input) |
|---|---|---|
| Simple Q&A, greetings, reminders | GPT-4o-mini | $0.15/1M |
| Web search, summaries, translations | Claude Sonnet 4 | $3.00/1M |
| Complex reasoning, coding, analysis | Claude Opus 4 | $15.00/1M |
Setup in OpenClaw
OpenClaw supports model routing through its configuration:
models:
default: anthropic/claude-sonnet-4
routes:
- match: [greeting, simple_qa, reminder, time, weather]
model: openai/gpt-4o-mini
- match: [code, analysis, complex_reasoning, math]
model: anthropic/claude-opus-4
- match: [search, summary, translation]
model: anthropic/claude-sonnet-4You can also set up a classifier that uses GPT-4o-mini (essentially free at its price point) to categorize each incoming message and route it to the appropriate model.
The Math
Assume 100 messages/day with this distribution (based on typical usage patterns):
| Tier | % of Messages | Old Model | New Model | Old Cost/msg | New Cost/msg |
|---|---|---|---|---|---|
| Simple | 40% | Opus ($15) | GPT-4o-mini ($0.15) | $0.045 | $0.00045 |
| Medium | 40% | Opus ($15) | Sonnet ($3) | $0.045 | $0.009 |
| Complex | 20% | Opus ($15) | Opus ($15) | $0.045 | $0.045 |
Costs assume 3,000 input tokens per message.
Before mixing: 100 msgs x $0.045 = $4.50/day = $135/month (input only)
After mixing: (40 x $0.00045) + (40 x $0.009) + (20 x $0.045) = $0.018 + $0.36 + $0.90 = $1.28/day = $38.40/month
Savings: ~$97/month — a 72% reduction in model costs.
The best part: for 80% of your interactions, you will not notice any quality difference. Simple tasks get answered just as well by a cheap model.
Technique 3: Prompt Caching — Save 10-25%
Every time you send a message to Claude, your system prompt and skill definitions get sent along with it. If your system prompt is 3,000 tokens and you send 100 messages a day, that is 300,000 tokens per day just for the same unchanging text.
Anthropic's prompt caching lets you cache static content (system prompts, tool definitions) so you only pay once for the initial load, then a reduced rate for subsequent reads.
How It Works
Cached input tokens are priced at 90% off:
| Standard Input | Cached Input | Cache Write | |
|---|---|---|---|
| Claude Opus 4 | $15.00/1M | $1.50/1M | $18.75/1M |
| Claude Sonnet 4 | $3.00/1M | $0.30/1M | $3.75/1M |
You pay a small premium to write to the cache, then get 90% off on every subsequent read. The cache typically lasts 5 minutes and gets refreshed with each use.
Setup in OpenClaw
Prompt caching is enabled by default in recent OpenClaw versions for Anthropic models. Make sure you are on v2026.3.0 or later:
llm:
provider: anthropic
cache:
enabled: true
static_prefix: true # Cache system prompt and tool definitionsThe Math
Assume a 4,000-token system prompt, 100 messages/day, Claude Sonnet 4:
Before caching:
- System prompt cost: 4,000 tokens x 100 msgs x 30 days x $3/1M = $36/month
After caching (cache hit rate ~95%):
- Cache writes: 4,000 x 5 msgs x 30 days x $3.75/1M = $2.25
- Cache reads: 4,000 x 95 msgs x 30 days x $0.30/1M = $3.42
- Total: $5.67/month
Savings: ~$30/month on system prompt costs — an 84% reduction.
This is essentially free money. If you are using Anthropic models and have not enabled caching, do it now.
Technique 4: Skill Consolidation — Save 5-15%
Every active skill in OpenClaw adds to your system prompt. Each skill definition typically contributes 200-800 tokens of tool descriptions, parameters, and instructions. If you have 15 skills loaded, that is an extra 3,000-12,000 tokens sent with every single message.
Most users have skills they installed once, tried once, and forgot about. Those skills are silently inflating every API call.
How to Audit
Check your active skills:
openclaw skill list --activeFor each skill, ask: "Have I used this in the last two weeks?" If not, deactivate it.
Practical Approach
Organize skills into profiles:
skill_profiles:
default:
- core/memory
- core/web-search
- core/calendar
coding:
- core/memory
- dev/code-runner
- dev/github
- dev/docker
research:
- core/memory
- core/web-search
- research/arxiv
- research/scholarSwitch profiles based on what you are doing. Your "default" profile should have 3-5 essential skills, not 15.
The Math
Assume 12 skills averaging 500 tokens each, reduced to 4 skills:
Before consolidation:
- Extra skill tokens: 12 x 500 = 6,000 tokens per message
- Monthly cost (100 msgs/day, Sonnet $3/1M): 6,000 x 100 x 30 x $3/1M = $54/month
After consolidation:
- Extra skill tokens: 4 x 500 = 2,000 tokens per message
- Monthly cost: 2,000 x 100 x 30 x $3/1M = $18/month
Savings: $36/month — a 67% reduction in skill overhead.
This technique pairs well with prompt caching. Fewer skill tokens means smaller cached prefixes, which means faster cache writes and lower overall costs.
Technique 5: Local Models for Simple Tasks — Save 15-30%
Here is a radical idea: some tasks do not need a cloud API at all. Message classification, intent routing, simple Q&A from cached knowledge, and basic text transformations can all run on a local model with zero API cost.
Setting Up Ollama
Ollama lets you run open-source models locally. Install it and pull a small, fast model:
# Install Ollama
curl -fsSL https://ollama.ai/install.sh | sh
# Pull a fast model for simple tasks
ollama pull llama3.2:3b # 2GB, great for classification
ollama pull mistral:7b # 4GB, good for general tasksConnecting to OpenClaw
Configure OpenClaw to use Ollama for specific tasks:
models:
local:
provider: ollama
model: llama3.2:3b
endpoint: http://localhost:11434
routes:
- match: [classify, route, simple_format]
model: local
- match: [greeting, weather, time, reminder]
model: localThe Math
Assume 30% of your messages (30/day) can be handled locally:
Before local models:
- 30 simple messages x 3,000 tokens avg x $3/1M (Sonnet) = $0.27/day = $8.10/month
- Plus output tokens: 30 x 500 tokens x $15/1M = $0.225/day = $6.75/month
- Total for simple tasks: $14.85/month
After local models:
- Electricity cost for running Ollama: roughly $2-3/month
- API cost for these messages: $0
Savings: ~$12/month on simple tasks.
The bigger win: local models respond in milliseconds with no network latency. Your simple interactions feel instant.
If you are using ClawPod, the managed VPS runs Ollama-compatible endpoints that you can configure for lightweight tasks — no separate setup required.
Technique 6: Response Length Control — Save 10-20%
Output tokens are expensive — often 3-5x more than input tokens. Claude Opus charges $75/1M for output tokens versus $15/1M for input. Yet most users let the model ramble with no constraints.
A typical unconstrained response runs 500-1,500 tokens. With proper configuration, you can get equally useful answers in 200-500 tokens.
Configuration Options
Set global and per-skill max tokens:
llm:
max_tokens: 500 # Global default
response_style: concise
skills:
web-search:
max_tokens: 800 # Searches may need more room
code-runner:
max_tokens: 1500 # Code output needs space
simple-qa:
max_tokens: 200 # Keep simple answers shortYou can also add instructions to your system prompt:
Respond concisely. Use bullet points for lists.
Avoid unnecessary preambles, disclaimers, and summaries.
If the answer is short, keep the response short.The Math
Assume 100 messages/day with Claude Sonnet 4:
Before length control:
- Average output: 800 tokens/response
- Monthly output cost: 800 x 100 x 30 x $15/1M = $36/month
After length control:
- Average output: 400 tokens/response
- Monthly output cost: 400 x 100 x 30 x $15/1M = $18/month
Savings: $18/month — a 50% reduction in output costs.
Shorter responses are not just cheaper. They are usually better. Nobody wants to read five paragraphs when a bullet list would do.
Technique 7: Batch Processing — Save 5-10%
If you regularly send OpenClaw a series of related tasks — "summarize these 10 articles," "translate these 5 paragraphs," "analyze these 8 data points" — sending them one at a time is the expensive way.
Each individual request carries the full system prompt, conversation history, and skill definitions. Ten requests means paying for ten copies of that overhead.
How to Batch
Instead of:
You: Summarize article 1
Bot: [summary]
You: Summarize article 2
Bot: [summary]
...x10Send:
You: Summarize each of these 10 articles. Return results in a numbered list.
[article 1 text]
[article 2 text]
...One request, one system prompt, one response.
The Math
Assume 10 articles, each 1,000 tokens, system prompt of 4,000 tokens, Sonnet:
Individual processing (10 requests):
- Input: 10 x (4,000 + 1,000 + history) = ~60,000 tokens
- Cost: 60,000 x $3/1M = $0.18 per batch
Batched processing (1 request):
- Input: 4,000 + 10,000 + history = ~16,000 tokens
- Cost: 16,000 x $3/1M = $0.048 per batch
Savings: 73% per batch operation.
If you do batch-style work regularly (daily summaries, content processing, data analysis), this adds up to $15-30/month in savings.
Using Anthropic's Batch API
For heavy batch workloads, Anthropic offers a dedicated Batch API with 50% off standard pricing. Requests are processed within 24 hours rather than in real-time:
| Standard API | Batch API | |
|---|---|---|
| Claude Sonnet 4 Input | $3.00/1M | $1.50/1M |
| Claude Sonnet 4 Output | $15.00/1M | $7.50/1M |
If you have tasks that do not need immediate responses (overnight content generation, weekly report compilation), the Batch API can halve your costs on those workloads.
Stacking Savings: The Compound Effect
These techniques are not mutually exclusive. They stack. Here is what happens when you apply them together:
Let's start with a baseline: a power user running Claude Opus 4 for everything, 100 messages/day, no optimization.
Baseline monthly cost: ~$300/month
Now apply each technique sequentially:
| Step | Technique | Reduction | Running Total |
|---|---|---|---|
| 0 | Baseline (no optimization) | — | $300 |
| 1 | Memory Distillation | -35% | $195 |
| 2 | Model Mixing | -30% | $137 |
| 3 | Prompt Caching | -15% | $116 |
| 4 | Skill Consolidation | -10% | $104 |
| 5 | Local Models | -20% | $83 |
| 6 | Response Length Control | -15% | $71 |
| 7 | Batch Processing | -8% | $65 |
Final monthly cost: ~$65/month — a 78% reduction.
In practice, aggressive optimization can push this below $50/month. Some users in the OpenClaw community report spending under $30/month with heavy local model usage and careful prompt engineering.
Monthly Cost Comparison: Before vs After
Here is a realistic comparison for three user profiles:
| Light User (30 msgs/day) | Standard User (100 msgs/day) | Power User (300 msgs/day) | |
|---|---|---|---|
| Before optimization | $80/month | $300/month | $900/month |
| After optimization | $15/month | $60/month | $180/month |
| Savings | $65/month | $240/month | $720/month |
| Annual savings | $780 | $2,880 | $8,640 |
The higher your usage, the more you save. Power users benefit the most because the overhead reduction compounds with volume.
Quick-Start Checklist
If you want to start saving today, here is the priority order:
- Enable memory distillation — Highest impact, minimal effort. Change one config value.
- Set up model mixing — Route simple tasks to GPT-4o-mini. Takes 10 minutes to configure.
- Enable prompt caching — If you are on Anthropic models, this is a single toggle.
- Audit your skills — Deactivate anything you have not used in two weeks.
- Set max tokens — Add
max_tokens: 500to your global config. Adjust per-skill as needed. - Install Ollama — For classification and simple tasks. Weekend project.
- Batch your workflows — Train yourself to group related tasks into single requests.
Steps 1-3 take under 30 minutes and deliver 50-60% of the total savings.
Monitoring Your Costs
You cannot optimize what you cannot measure. Track your token usage to see where the money goes:
OpenRouter Dashboard — If you route through OpenRouter, the dashboard shows per-model, per-day spending breakdowns. This is the easiest way to identify which models and conversations are eating your budget.
OpenClaw Built-in Stats — Recent versions include a /stats command that shows token usage per conversation, per skill, and per model over the last 30 days.
ClawPod Dashboard — If you are running OpenClaw through ClawPod, the management dashboard includes real-time API usage monitoring, cost tracking, and alerts when spending exceeds thresholds you set. No manual setup required — it is built into the platform.
The Bigger Picture: Is Self-Optimization Worth It?
Let's be honest: implementing all seven techniques takes time. You need to understand your usage patterns, configure routing rules, set up Ollama, and iterate on what works.
For some users, the time investment pays off handsomely. If you are spending $300/month and can cut it to $60, that is $2,880/year in savings — worth a weekend of configuration work.
For others, the complexity is not worth it. If you are not comfortable editing YAML configs and managing local model servers, a managed service handles much of this for you. ClawPod at $29.9/month includes built-in cost optimization features, pre-configured model routing, and monitoring — so you can focus on using your AI agent rather than tuning it.
Either way, the core principle is the same: stop paying premium prices for commodity work. Route smart, cache aggressively, and keep your context lean.
Further Reading
If you are new to OpenClaw and want to understand the basics first:
- What is OpenClaw? — A complete introduction to OpenClaw, what it does, and who it is for.
- How to Install OpenClaw — Step-by-step installation guide for self-hosting.
Token costs are the biggest ongoing expense of running an AI agent. But they do not have to be. With the right configuration, you can get 80% of the results for 20% of the cost. The math works. The tools exist. Now go cut your bill.
If you are building a business on OpenClaw, also check out our guides on making money with OpenClaw and running a one-person company for under $300/month. And don't forget security best practices to protect your setup.
Frequently Asked Questions
How much does OpenClaw cost per month?
It varies based on usage. A casual user (30 messages/day) spends $15-80/month on API costs. A power user (100+ messages/day) can spend $200-300/month without optimization. With the techniques in this guide, most users reduce their costs to $30-65/month.
Which AI model is cheapest for OpenClaw?
GPT-4o-mini at $0.15/1M input tokens is the cheapest cloud option for simple tasks. For free local processing, use Ollama with Llama 3.2 or Mistral. For the best balance of cost and quality, Claude Sonnet 4 at $3/1M input tokens handles most tasks well.
Does ClawPod help reduce token costs?
ClawPod includes built-in cost monitoring dashboards and supports Ollama for local model routing. At $29.9/month for hosting, it provides the infrastructure — but API costs depend on your model choice and usage patterns.
Can I use free models with OpenClaw?
Yes. OpenClaw supports local models through Ollama, which run entirely on your hardware at zero API cost. Models like Llama 3.2 (3B) and Mistral 7B handle classification, routing, and simple Q&A well. Use them for the simple 30-40% of your interactions and save cloud APIs for complex tasks.
What is the single most effective cost optimization?
Memory distillation. It reduces conversation history overhead by 85% and typically cuts total costs by 30-40% with a single configuration change. If you do nothing else, enable this.

