---
title: "What AI recommended for ai agent frameworks in September 2026"
description: "What AI recommends for ai agent frameworks, updated monthly: which tools Claude · Claude Haiku 4.5, Claude · Claude Opus 4.8, Claude · Claude Sonnet 4.6, ChatGPT, Venice · DeepSeek V4 Flash 0731, Venice · Gemini 3.6 Flash, Venice · Kimi K2.6, Venice · Qwen 3.7 Plus and Venice · GLM 5.2 named in September 2026 when developers asked \"What framework should I use to build AI agents?\", cross-referenced with what developers say about them."
source: https://backtalk.sh/ai-recommends/ai-agent-frameworks/2026-09
---

# What AI recommends for ai agent frameworks (September 2026)

When developers ask "What framework should I use to build AI agents?", this is what Claude · Claude Haiku 4.5, Claude · Claude Opus 4.8, Claude · Claude Sonnet 4.6, ChatGPT, Venice · DeepSeek V4 Flash 0731, Venice · Gemini 3.6 Flash, Venice · Kimi K2.6, Venice · Qwen 3.7 Plus and Venice · GLM 5.2 answer, measured over 295 sampled answers across 4 probe runs. Share of voice is the percentage of sampled answers naming the tool; the dev pulse is the sentiment of the same month's developer mentions on Hacker News, Reddit, GitHub, Stack Overflow, Bluesky and more.

| # | Tool | AI share of voice | Change vs prior month | Named by | Dev pulse |
|---|------|------------------:|----------------------:|----------|-----------|
| 1 | AutoGen | 0% | -18.2 pts | none this month | not tracked |
| 2 | CrewAI | 0% | -18.9 pts | none this month | not tracked |
| 3 | LangChain | 0% | -29.8 pts | none this month | not tracked |
| 4 | LangGraph | 0% | -17.4 pts | none this month | quiet (net +0) |
| 5 | LlamaIndex | 0% | -27.8 pts | none this month | not tracked |
| 6 | Pydantic AI | 0% | -12.3 pts | none this month | not tracked |

Biggest mover: LangChain (-29.8 pts vs the previous month).

## The prompts behind these standings

- What framework should I use to build AI agents? (recommendation)
- What are the best LangChain alternatives? (alternatives)
- Which framework is best for building an LLM app? (recommendation)

## Method

These September 2026 standings are final and never change; cite them by permalink. Full methodology: https://backtalk.sh/ai-recommends/methodology (as markdown: https://backtalk.sh/ai-recommends/methodology.md). Free to cite with attribution to "BackTalk AI Recommendation Standings" and a link.