fast-agent
★ 3.8k
vs
selene
★ 167
fast-agent vs selene
fast-agent: fast-agent is a CLI-first framework for building and interacting with sophisticated multimodal AI agents and workflows. It offers comprehensive support for various LLM providers, structured outputs, and vision, with unique features like MCP Feature support and live streaming responses to the terminal.; selene: Selene is a desktop app that runs AI agents locally, integrating with multiple messaging platforms. It uses a dual-agent architecture to reduce costs and context overhead, supports various LLM providers and local models, and offers modes for development, entertainment, and teamwork.
01
TL;DR
Choose fast-agent if…Rapid development and testing of sophisticated multimodal AI agents and workflows.
Choose selene if…Code development and review using Selene Dev mode
02
Side-by-Side Comparison
03
Features
fast-agent01Sophisticated multimodal Agent and Workflow creation.
02Comprehensive LLM provider support (e.g., Anthropic, OpenAI, Google, Ollama).
03Structured outputs, PDF, and Vision support.
04CLI-first with interactive terminal UI (TUI-style) and live streaming responses.
05Advanced agentic workflows like Chain, Parallel, MAKER, and Agents As Tools.
selene01Agent-first design where agents can perform end-to-end tasks
02Dual-agent architecture for cost efficiency and context management
03Multiple modes: Selene Dev, Selene Fun, and Selene Work (coming soon)
04Native integrations with WhatsApp, Telegram, Slack, and Discord
05Voice and avatar support with speech-to-text, text-to-speech, and 3D avatar
04
Use Cases
fast-agent↳Rapid development and testing of sophisticated multimodal AI agents and workflows.
↳Diagnosing and tuning agent applications, including those requiring human input.
↳Implementing advanced agentic patterns for error reduction or complex task decomposition.
selene↳Code development and review using Selene Dev mode
↳Personal AI companions with customized personality and scheduling
↳Team collaboration workflows (coming soon)
05
Best For
fast-agentTrendingMulti-AgentDev Tooling
seleneTrendingVision / Multimodal
FAQ
FAQ
What is the difference between fast-agent and selene?
Both fast-agent and selene are in the Dev Tooling category. fast-agent has 3.8k stars, while selene has 167 stars.
Which is better, fast-agent or selene?
The best choice depends on your use case. Choose fast-agent if Rapid development and testing of sophisticated multimodal AI agents and workflows., and selene if Code development and review using Selene Dev mode.
Is fast-agent free or open source?
Yes, fast-agent is open source on GitHub (Apache-2.0).
Is selene free or open source?
Yes, selene is open source on GitHub (MIT).
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