AI Timeline

Anthropic releases Claude Sonnet 4.6, a faster and more affordable model in the 4.6 family with strong coding and reasoning performance.

Anthropic releases Claude Opus 4.6 with extended thinking and a 1M context window option, setting new benchmarks across reasoning tasks.

Google launches Gemini 2.5 Pro with a native 1M token context window and improved multimodal reasoning capabilities.

Meta releases Llama 4 with Scout (10M context) and Maverick (1M context) variants, pushing open-source model capabilities forward.

OpenAI launches GPT-4.5 with a 256K context window and significantly improved creative writing and emotional intelligence.

xAI releases Grok 3 with strong reasoning performance, trained on the Colossus 200K GPU cluster.

DeepSeek releases V3, a powerful open-source model trained with a fraction of the compute used by competitors, sparking industry debate about efficiency.

Anthropic releases Claude 3.5 Haiku, a fast and affordable model that outperforms the original Claude 3 Opus on many benchmarks.

Anthropic ships an upgraded Claude 3.5 Sonnet with computer use capabilities and significant improvements in coding and tool use.

The European Union begins enforcing the AI Act, requiring risk assessments and transparency for high-risk AI systems deployed in EU markets.

OpenAI launches o1, a reasoning-focused model that uses chain-of-thought at inference time to solve complex math and coding problems.

Meta releases Llama 3.1 with a 405B parameter variant, the largest open-source model at the time, matching frontier closed models.

OpenAI launches GPT-4o Mini at $0.15 per million input tokens, dramatically undercutting existing pricing and pressuring the entire market.

Anthropic releases Claude 3.5 Sonnet, surpassing GPT-4o on most benchmarks while maintaining fast response times and lower costs.

OpenAI releases GPT-4o with native multimodal capabilities including real-time voice and vision, available free to all ChatGPT users.

Meta releases Llama 3 in 8B and 70B variants, establishing a new bar for open-source language model performance.

Anthropic launches the Claude 3 model family (Haiku, Sonnet, Opus) with vision capabilities and a 200K context window.

Google launches Gemini 1.5 Pro with a 1M token context window, a major leap in long-context processing for production use.

Google releases Gemini 2.0 Flash with native tool use and multimodal output, optimized for agentic workflows.

Mistral releases Large 2 with a 256K context window, strong multilingual support, and competitive pricing for enterprise use.

OpenAI closes a $6.6B funding round at a $157B valuation, making it the most valuable private AI company in the world.

The EU AI Act officially enters into force, establishing the world's first comprehensive legal framework for artificial intelligence regulation.

Amazon completes its $2.75B additional investment in Anthropic, bringing its total commitment to $4B and deepening the AWS partnership.