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8 Best Free Alternatives to ChatGPT (2026)

Last checked October 2026 · 9 alternatives to ChatGPT in our catalog

ChatGPT paid plans start at $20/mo, which is why people look for a free alternative. Below are 8 options with a free plan or no price at all - 3 are completely free, 4 are open source and 8 work in the browser.

Quick picks

Claude

Most popular

Claude

Agent-Reach

No paid tier at all

Agent-Reach

Picked from listing data (price model, license, platforms, community votes), not hands-on testing.

ChatGPT alternatives compared

AlternativePriceOpen sourcePlatformsWhat it is
ClaudeFreemiumNoWeb, Mac, Windows, iOSAnthropic's AI assistant for writing, coding, and analysis.
PerplexityFreemiumNoWeb, iOS, AndroidAI-powered answer engine with cited sources.
Google GeminiFreemiumNoWeb, iOS, AndroidGoogle’s multimodal AI assistant.
PoeFreemiumNoWeb, iOS, AndroidChat with ChatGPT, Claude, Gemini, and thousands of community-built AI bots in a single app.
Agent-ReachFreeYes (MIT)WebCLI that lets AI agents read and search the public web without API keys
claude-obsidianFreeYes (MIT)WebAI-powered chatbot for Obsidian
gpt4freeFreeYes (GPL-3.0)WebFree web‑based GPT‑4 chatbot for research, study, and development
JeecgBootFreemiumYes (Apache-2.0)WebEnterprise-level AI low-code platform
1
Claude

Claude

FreemiumWebMacWindowsiOS

Anthropic's AI assistant for writing, coding, and analysis.

Free plan includes: Access to Claude models · Basic Projects · Web & mobile apps

  • Strong performance on long-context and reasoning tasks
  • Careful, thoughtful responses
  • Artifacts make iterative work easier to manage
  • Free tier usage limits are fairly restrictive
  • Fewer third-party plugin integrations than some competitors
Full details ChatGPT vs Claude
4
Poe

Poe

FreemiumWebiOSAndroid

Chat with ChatGPT, Claude, Gemini, and thousands of community-built AI bots in a single app.

  • Single subscription covers many top AI models
  • Large library of community-built bots for niche tasks
  • Available on web, iOS, and Android with synced history
  • Heavy model usage can burn through message credits quickly
  • Best/most capable models are gated behind paid points
Full details
5
Agent-Reach

Agent-Reach

FreeOpen source · MITWeb

CLI that lets AI agents read and search the public web without API keys

  • No need for individual API keys
  • Covers multiple major social and code platforms
  • CLI works on any OS with a terminal
  • Limited to public content only
  • Requires manual installation of the CLI
Full details
6
claude-obsidian

claude-obsidian

FreeOpen source · MITWeb

AI-powered chatbot for Obsidian

  • Easy to use and intuitive interface
  • Powerful AI-powered search and retrieval
  • Seamless integration with Obsidian
  • Limited functionality compared to other chatbots
  • Dependent on Obsidian's plugin API for customization
Full details
7
gpt4free

gpt4free

FreeOpen source · GPL-3.0Web

Free web‑based GPT‑4 chatbot for research, study, and development

  • Completely free with no hidden fees
  • Runs in any modern browser
  • No API key or account required
  • Potential usage limits during peak traffic
  • Limited customization compared to paid APIs
Full details
8
JeecgBoot

JeecgBoot

FreemiumOpen source · Apache-2.0Web

Enterprise-level AI low-code platform

  • Rapid system development with one-sentence generation
  • AI-powered development with automated repetitive tasks
  • Enterprise-level features for complex system development
  • Steep learning curve due to complex features
  • Limited customization options for certain features
Full details

Frequently asked questions

What is the best free alternative to ChatGPT?

Claude is the first free alternative we list for ChatGPT. Others worth a look: Perplexity, Google Gemini and Poe. Which one fits depends on what you use ChatGPT for, so check the platform and free-plan details for each.

Is there a completely free alternative to ChatGPT?

Yes. Agent-Reach, claude-obsidian and gpt4free have no paid tier. The rest of the list are freemium: a free plan with paid upgrades.

Is there an open-source alternative to ChatGPT?

Yes: Agent-Reach, claude-obsidian, gpt4free and JeecgBoot. Open-source options can usually be inspected, modified and self-hosted.

Does ChatGPT have a free plan?

Yes. The free plan includes Limited GPT-4o access, Web browsing and Basic file uploads. Paid plans start at $20/mo.

How this list is built: alternatives come from our catalog's curated alternative relationships; price model, license and platforms come from each product's listing; order is fully-free first, then community votes.