What events are tracked on the AI timeline?

Model releases, API launches, pricing updates, context window increases, vision/audio support, function calling, reasoning models, benchmark milestones, and fine-tuning releases.

How often is the timeline updated?

Events are derived from SGO's centralized model dataset and update as new models are added.

AI Release Timeline

Track model launches, capability updates, pricing changes, and benchmark milestones across the AI industry.

2026

Grok 4

Model Release

xAI

Apr 9, 2026

Grok 4 launched by xAI. xAI Grok 4 with real-time retrieval emphasis and strong general capability.

Grok 4

API Release

xAI

Apr 9, 2026

API endpoint `grok-4` available for Grok 4.

Grok 4

Pricing Update

xAI

Apr 9, 2026

Initial pricing set at $3.00/M input and $15.00/M output tokens.

Grok 4

Vision Support

xAI

Apr 9, 2026

Grok 4 adds native vision and image understanding capabilities.

Grok 4

Function Calling

xAI

Apr 9, 2026

Grok 4 supports function calling and structured tool use.

Grok 4

Reasoning Model

xAI

Apr 9, 2026

Grok 4 introduces extended reasoning and chain-of-thought capabilities.