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Alternatives to Rig

Rig is an agent framework by Playgrounds: Rust library for LLM applications with agents, tool calling, streaming and 20+ model providers, plus a terminal coding agent. If it doesn't fit your setup, these 12 agent frameworks cover similar ground. They are ordered by how closely they match Rig and by our rank, which weighs adoption, freshness and documentation; money never changes the order. GitHub Copilot SDK leads the list (supports Python and TypeScript). Each entry shows data reasons to switch, and you can open a side-by-side comparison with Rig.

Updated Oct 26, 2026 · Built from catalog data; how we rank and grade

You're replacing

Rig

Rust library for LLM applications with agents, tool calling, streaming and 20+ model providers, plus a terminal coding agent.

12 alternatives

Ordered by how closely each matches Rig (shared product, category or stated alternative) and by rank.

  1. 1
    GitHub Copilot SDK

    GitHub

    Multi-language SDKs for embedding the GitHub Copilot agent runtime, with planning, tool calls and file edits, in your apps.

    • Supports Python and TypeScript

    ★ 10.6K↓ 1.2M/wkLast active Oct 24, 2026Compare →

  2. 2
    Ax

    Ax

    DSPy-style toolkit for typed LLM signatures, agents and flows, TypeScript-first with Python, Java, C++, Go and Rust libraries.

    • Supports TypeScript and Python

    ★ 3K↓ 27.2K/wkLast active Oct 21, 2026Compare →

  3. 3
    lix

    opral

    Embeddable version control system for files and SQL tables, with branch, diff, merge and rollback across both.

    • Supports JavaScript

    ★ 771↓ 565.7K/wkLast active Oct 14, 2026Compare →

  4. 4
    Swarms

    Swarms

    Python framework for orchestrating multiple LLM agents in sequential, concurrent, hierarchical and graph-based workflows.

    • Supports Python

    ★ 7.3K↓ 3.3K/wkLast active Oct 24, 2026

  5. 5
    yomo

    yomorun

    Open-source LLM function calling framework for AI agents, with serverless LLM tools and geo-distributed infrastructure.

    • 1.9K GitHub stars
    • Active in the last 30 days

    ★ 1.9KLast active Oct 24, 2026

  6. 6
    AutoAgents

    LiquidOS

    Rust multi-agent framework with typed tool calling, sliding-window memory, pluggable LLM backends and OpenTelemetry tracing.

    • Active in the last 30 days
    • Open source (Apache-2.0)

    ★ 765↓ 611/wkLast active Oct 18, 2026

  7. 7
    Swiftide

    Bosun

    Rust framework with an agent harness, typed task graphs and streaming indexing and RAG pipelines for LLM applications.

    • Active in the last 30 days
    • Open source (MIT)

    ★ 795↓ 188/wkLast active Oct 23, 2026

  8. 8
    LlamaIndex

    LlamaIndex

    Open-source Python toolkit for RAG and agents over your own data, with event-driven workflows and 300+ integration packages.

    • More GitHub stars (52.6K)
    • Supports Python

    ★ 52.6K↓ 1.4M/wkLast active Oct 14, 2026

  9. 9
    Genkit

    Google

    Open-source Firebase framework for AI features and agent workflows in JavaScript, Go, Python and Dart, with model plugins.

    • Supports TypeScript and JavaScript

    ★ 6.5K↓ 95.8K/wkLast active Oct 23, 2026

  10. 10
    Pi Agent Core

    Earendil

    Minimal TypeScript agent harness with an agent runtime, multi-provider LLM API, terminal UI and coding agent CLI that users extend themselves.

    • More GitHub stars (117.6K)
    • Supports TypeScript

    ★ 117.6K↓ 5.1M/wkLast active Oct 24, 2026

  11. 11
    ADK for Go

    Google

    Code-first Go toolkit for building agents with a tool ecosystem, composable multi-agent systems and Cloud Run deployment.

    • Supports Go

    ★ 8.9KLast active Oct 23, 2026

  12. 12
    AgentScope Java

    Alibaba Tongyi Lab

    Java framework for distributed, long-running agents with typed event streams, permission gating, middleware and subagents.

    • Supports Java

    ★ 6.1KLast active Oct 24, 2026

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