Technical / Code-First Frameworks · Updated 1 July 2026

Top Frameworks

Ranked by real-world demand. As of 1 July 2026, LangChain is the most-sought framework — index 82.5 of 100.

Framework finder

Which agent framework should you use?

There are 25 on the board. Answer 3 quick questions and get the 2–3 that actually fit how you build — not just the most popular.

How these frameworks differ

The board ranks by demand. This map places each tool by low-level / composable → high-level / opinionated and single-agent → multi-agent team, so you can choose by fit, not just popularity.

← Low-level / composable High-level / opinionated → ↑ Multi-agent team ↓ Single-agent Compose your own agents Opinionated crews Low-level single agent Batteries-included LangChain LangChain LangGraph LangGraph LlamaIndex LlamaIndex CrewAI CrewAI Haystack Haystack Microsoft AutoGen Microsoft AutoGen Spring AI Spring AI Google ADK Google ADK OpenAI Agents SDK OpenAI Agents SDK Strands Agents Strands Agents DSPy DSPy Anthropic Claude Agent SDK Anthropic Claude Agent SDK Semantic Kernel Semantic Kernel Mastra Mastra Pydantic AI Pydantic AI Letta (MemGPT) Letta (MemGPT) Agno Agno smolagents smolagents CAMEL CAMEL Eliza (elizaOS) Eliza (elizaOS) OpenAI Swarm OpenAI Swarm Griptape Griptape Atomic Agents Atomic Agents Marvin Marvin Guidance Guidance
#ToolIndexDemandGitHub ⭐Searches/mo
1 LangChain 82.5 182k 116k
2 LangGraph 67.4 39k 33k
3 LlamaIndex 64.4 54k 12k
4 CrewAI 60.1 55k 13k
5 Haystack 58.0 26k 4.5k
6 Microsoft AutoGen 56.4 59k 6.6k
7 Spring AI 55.5 9.1k 4.4k
8 Google ADK 54.3 20k 9.9k
9 OpenAI Agents SDK 51.8 31k 5.4k
10 Strands Agents 50.5 6.4k 51k
11 DSPy 50.0 36k 6.1k
12 Anthropic Claude Agent SDK~ 49.7 9.1k 9.9k
13 Semantic Kernel 49.4 29k 2.4k
14 Mastra 45.8 26k 1.3k
15 Pydantic AI 42.3 18k 115
16 Letta (MemGPT) 42.0 24k 2.2k
17 Agno 40.8 41k 2.8k
18 smolagents 39.4 28k 1.6k
19 CAMEL~ 39.4 17k 2.7k
20 Eliza (elizaOS) 38.6 19k 720
21 OpenAI Swarm 34.8 22k 480
22 Griptape 34.1 2.5k 1.4k
23 Atomic Agents 33.6 6k 390
24 Marvin~ 30.3 6.2k 455
25 Guidance~ 27.1 22k 20

Index = market demand (search + AI demand) weighted most heavily, then adoption, real usage, momentum, production-readiness and community. ◇ proprietary / closed-source (no public repo — scored on demand). ~ demand estimated from product-site traffic. Methodology → · All boards →

Common questions

Top Frameworks — frequently asked questions

What is the best framework right now?

As of 1 July 2026, LangChain is the most-sought framework on the Agent Reality Index, scoring 82.5 of 100. "Best" here means the strongest real-world demand and adoption rather than an editorial pick — the full board ranks the top 25.

How is the Frameworks ranking calculated?

Each tool gets a 0–100 score weighted most heavily toward real-world market demand (search and AI-search volume), then developer adoption, real usage, momentum, production-readiness, and community — rather than GitHub stars or vendor claims.

How many frameworks are ranked, and how often is the board updated?

The board ranks 25 frameworks and is rebuilt monthly from fresh demand and adoption data. It was last updated 1 July 2026.