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Composer
Composer lets users build trading algorithms with AI, backtest strategies, and execute them through an investment app.
About Composer
Composer by SoFi is an automated trading platform and investment app for building, testing and running rule-based strategies. Users describe goals and risk concerns in natural language and an AI-assisted editor drafts a strategy, or they can build and edit one themselves in a no-code visual editor using weightings, conditionals and asset selection rules. Strategies can be backtested against a benchmark, reviewed with a historical allocation graph, and modeled for fees, slippage and final value.
Key features
- AI-assisted editor drafts strategies from natural-language goals and risk concerns
- No-code visual editor with weightings, conditionals, and sort/filter asset selection
- Backtesting with benchmark comparison, allocation history, and fee/slippage modeling
- Automated execution and rebalancing of strategies through Composer's own brokerage
- Pre-built and community strategies that can be invested in, remixed, or published
- Traditional and Roth IRA accounts supported for automated trading
Best for: Investors who want to design, test and automate rule-based trading strategies without writing code.
Good for
- Strategy creation is available without coding skills through AI assistance and a visual editor
- Backtesting, benchmark comparison and cost modeling are built into the platform
- Homepage states zero commissions and zero management fees, with a no-subscription starting point
Watch out for
- Platform access is web-based only
- Other fees may apply beyond commissions and management fees
- More automated strategies require paid Advanced or Pro plans
Composer at a glance
- Website
- composer.trade
- Category
- AI & Machine Learning › AI Data & Analytics
- Type
- Online tool
- Pricing
- Paid
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Composer FAQ
Do I need a subscription to start?
The homepage states no subscription is needed to start and that a first strategy can be automated at no subscription cost. Advanced and Pro plans support more automated strategies, and Starter, Advanced and Pro plans all include automated trading at different scales.
What trading costs does Composer charge?
The homepage states zero commissions on trades and zero management fees, but notes that other fees may apply and points to a full fee schedule.
Can retirement accounts be used?
Traditional and Roth IRAs are listed among supported accounts for tax-smart active trading, and one plan is described as covering trading in every account opened, including IRAs.
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