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AI Chat Platforms
General-purpose chat interfaces with free tiers
3 tools0 free
3 tools found
GPT-4o and limited GPT-5 access
Free tierAPI
No credit card required
GPT-4o, limited GPT-5 (~20 msgs/3hr)
API2 models
View ChatGPT details2M context, 20 Deep Research/mo
Free tierAPI
No credit card required
Gemini 3.1 Flash, 20 Deep Research/mo
API2 models
View Gemini detailsClaude Sonnet/Haiku free tier
Free tierAPI
No credit card required
Claude Sonnet/Haiku (~30 msgs/5h)
API2 models
View Claude details