Build a strategy or use one that works.
Composer is a no-code platform for building and running rules-based stock strategies. Caliber Engine is an autonomous AI engine that brings its own strategy. Here is how to choose between assembling rules and a system that runs itself.
How the pipeline turns a connected account into autonomous execution.
Two ways to automate equities
Composer and Caliber Engine solve overlapping problems with very different philosophies.
- Step 01
Composer is a strategy builder
You build a symphony of conditional logic — if-this-then-that across momentum, volatility, and asset rotation rules. Composer then runs that symphony on a brokerage account.
- Step 02
Caliber Engine is the strategy
You do not build rules. The engine has its own AI-driven strategy, powered by Anthropic Claude, that scans, decides, sizes, and manages every trade.
- Step 03
Different mental models
Composer rewards traders who enjoy designing systematic rules. Caliber Engine is for traders who want the rules to already exist and improve over time.
Choose Caliber Engine if you do not want to design rules
No symphony to build
Composer asks you to design the strategy. Caliber Engine brings the strategy with it. The only inputs are capital and risk.
AI reasoning per trade
Composer runs your conditional rules deterministically. Caliber Engine reasons about each setup with an AI engine and logs the outcome.
Adapts to outcomes
Every trade is a logged lesson. The engine improves over time. Static rule sets do not.
Hands-off by design
There is no rebalance schedule to babysit, no symphony to tune, and no rule-pack to maintain. Connect a broker, set your capital, walk away.
When Composer is the right tool — and when it is not
Composer is a thoughtful product for traders who enjoy designing systematic strategies without writing code. The symphonies you build can encode real edge — momentum rotations, volatility-aware allocation, asset class switching — and the platform runs them deterministically against your brokerage account.
Caliber Engine is for traders who do not want to design the strategy themselves. The engine has its own. Powered by Anthropic Claude, it scans the market, evaluates setups with AI reasoning, sizes positions, and manages risk autonomously. Every outcome is logged so the engine's next decision benefits from the last one — without you tuning anything.
These products serve adjacent traders. Composer is for the systems-builder mindset. Caliber Engine is for the hands-off mindset. If you have an edge you want to encode and run, Composer is the right tool. If you want a strategy that already exists and runs itself, Caliber Engine is the right tool.
Common questions
For traders who do not want to build their own strategy, yes. Composer asks you to design symphonies; Caliber Engine has its own AI-driven strategy. If you enjoy building rules yourself, Composer is the better fit.
Further reading
Background from the Caliber blog on the topics behind this page.
Other comparisons
See how Caliber Engine stacks up against other tools traders are evaluating.
Skip the symphony. Use the strategy.
Caliber Engine is the autonomous engine for traders who would rather not design their own.
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