GPT-5.2 Thinking mode achieved breakthrough 70.9% on GDPval, marking the first model to match human expert performance across 44 occupations.

Google unveiled Gemini 3 Pro, attaining a historic 1501 Elo score on LMArena, the highest ranking ever.

Anthropic launched Claude Opus 4.5 in November 2025, achieving a record 80.9% on SWE-bench Verified for coding performance.

OpenAI released GPT-5.2 on December 11, 2025, introducing three operating modes: Instant for low latency, Thinking for deep reasoning, and Pro for maximum intelligence, with a 400K token context window and memory across sessions.

Google unveiled Gemini 3 on November 18, 2025, its most powerful multimodal model with deep reasoning, integrated into Google Search and Android apps.

Anthropic launched Claude Opus 4.5 in November 2025, achieving a record 80.9% on SWE-bench for coding performance.

Microsoft revealed GPT-5.2 available in Microsoft 365 Copilot on December 11, 2025, featuring Thinking model for strategic insights and Instant model for everyday tasks.

OpenAI announced GPT-5.1 on November 12, 2025, an upgrade to the GPT-5 series for ChatGPT with two variants: GPT-5.1 Instant for conversational tasks and GPT-5.1 Thinking for enhanced reasoning.

Microsoft rolled out GPT-5.2 in Microsoft 365 Copilot, offering Thinking and Instant models with contextual understanding from Work IQ data.

Google DeepMind unveiled Gemini 3 in early December, a state-of-the-art multimodal model integrated into Google Search and Android apps.