Technical / Code-First Frameworks · Updated 1 August 2026

Top Frameworks

Ranked by real-world demand. As of 1 August 2026, LangChain is the most-sought framework — index 82.2 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 Spring AI Spring AI Microsoft AutoGen Microsoft AutoGen OpenAI Agents SDK OpenAI Agents SDK Google ADK Google ADK Anthropic Claude Agent SDK Anthropic Claude Agent SDK Strands Agents Strands Agents DSPy DSPy Semantic Kernel Semantic Kernel Mastra Mastra Pydantic AI Pydantic AI Letta (MemGPT) Letta (MemGPT) Eliza (elizaOS) Eliza (elizaOS) Agno Agno CAMEL CAMEL smolagents smolagents Atomic Agents Atomic Agents Griptape Griptape OpenAI Swarm OpenAI Swarm Guidance Guidance Marvin Marvin
#ToolIndexDemandGitHub ⭐Searches/mo
1 LangChain 82.2 185k 111k
2 LangGraph 67.2 42k 33k
3 LlamaIndex 65.9 54k 13k
4 CrewAI 61.9 56k 13k
5 Haystack 58.2 26k 4.3k
6 Spring AI 57.2 9.2k 4.4k
7 Microsoft AutoGen 56.6 60k 6.6k
8 OpenAI Agents SDK 52.8 32k 5.4k
9 Google ADK 52.8 21k 9.9k
10 Anthropic Claude Agent SDK~ 52.2 9.4k 9.9k
11 Strands Agents 51.5 6.8k 51k
12 DSPy 50.7 37k 5.8k
13 Semantic Kernel 50.3 29k 2.4k
14 Mastra 46.9 27k 1.6k
15 Pydantic AI 46.5 19k —
16 Letta (MemGPT) 44.0 24k 1.9k
17 Eliza (elizaOS) 43.9 19k 720
18 Agno 42.8 42k 2.7k
19 CAMEL~ 40.7 18k 2.5k
20 smolagents 38.7 29k 1.6k
21 Atomic Agents 37.2 6.1k 390
22 Griptape 36.1 2.6k 1.4k
23 OpenAI Swarm 36.0 22k 480
24 Guidance~ 32.0 22k 20
25 Marvin~ 31.5 6.2k 456

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 August 2026, LangChain is the most-sought framework on the Agent Reality Index, scoring 82.2 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 August 2026.