Probably Raises $9M to Build AI Systems That Catch Their Own Errors
Andreessen Horowitz-backed startup Probably uses validator systems and smaller models to achieve 99.99% accuracy in AI outputs, reducing hallucination risk and token costs.
#hallucinations
KPMG Withdraws AI Report After GPTZero Identifies Hallucinations From AI-Generated Content
Professional services firm pulls October 2025 report on agentic AI after organizations dispute accuracy of AI-usage claims.
OpenAI Claims GPT-5.5 Instant Cuts Hallucinations by Half in High-Stakes Domains
OpenAI's new default ChatGPT model reportedly achieves a 52.5% reduction in hallucinated claims on high-stakes queries, grounded in real user-flagged failure data.
OpenAI Rolls Out GPT-5.5 Instant With a 52.5% Hallucination Drop and New Memory Transparency Controls
ChatGPT's new default model cuts fabricated claims by more than half on high-stakes prompts and shows users exactly what personal context shaped each response.