Which AI chat assistants sign a BAA?

General-purpose chatbots people use directly — ChatGPT, Claude, Copilot and similar apps.

Of the 14 we’ve checked, 3 sign a BAA on every listed plan, 4 only on some plans or setups, and 0 don’t. For 7, we couldn't confirm either way from the vendor's own pages.

ToolBAAPlans with a BAAChecked
BastionGPTBastion IntelligenceSigns a BAAProfessional; Professional Plus; Ultra (Enterprise); APIOct 12, 2026
CompliantChatGPTLight-itSigns a BAAStarter / Pro / Full; EnterpriseSome AI features excluded or partly coveredOct 12, 2026
Hathr AIHathr.AISigns a BAASingle Subscription Webapp; API (Base / Starter / Scale); EnterpriseOct 12, 2026
ChatGPTOpenAISome plans onlyEnterprise; Edu; ChatGPT for Healthcare; ChatGPT for Clinicians; ChatGPT FedRAMPSome AI features excluded or partly coveredOct 11, 2026
Claude apps (Claude.ai)AnthropicSome plans onlyEnterprise (self-serve or sales-assisted)Some AI features excluded or partly coveredOct 11, 2026
GrokxAI (SpaceXAI LLC)Some plans onlyAPI (ZDR-enabled)Some AI features excluded or partly coveredOct 11, 2026
PerplexityPerplexity AISome plans onlyEnterprise Pro / Enterprise Max; API (Sonar)Some AI features excluded or partly coveredOct 11, 2026
Character.AICharacter.AINot confirmed—Oct 12, 2026
DeepSeekDeepSeekNot confirmed—Oct 11, 2026
Gemini app (personal Google account)GoogleNot confirmed—Oct 12, 2026
Meta AIMetaNot confirmed—Oct 11, 2026
Microsoft Copilot (consumer app)MicrosoftNot confirmed—Oct 11, 2026
PiInflection AINot confirmed—Oct 11, 2026
PoeQuora (Poe)Not confirmed—Oct 11, 2026