AI Release Timeline

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

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

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

Grok 4 adds native vision and image understanding capabilities.

Grok 4 supports function calling and structured tool use.

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

Grok 3 launched by xAI. xAI flagship with strong reasoning and tool use.

API endpoint `grok-3` available for Grok 3.

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

Grok 3 adds native vision and image understanding capabilities.

Grok 3 supports function calling and structured tool use.

Grok 3 introduces extended reasoning and chain-of-thought capabilities.

Grok 3 achieves 92/100 reasoning benchmark score — top-tier performance.

Grok 3 Mini launched by xAI. Efficient Grok 3 variant for high-volume use.

API endpoint `grok-3-mini` available for Grok 3 Mini.

Initial pricing set at $0.30/M input and $0.50/M output tokens.

Grok 3 Mini adds native vision and image understanding capabilities.

Grok 3 Mini supports function calling and structured tool use.

Grok 3 Mini introduces extended reasoning and chain-of-thought capabilities.

Grok 2 launched by xAI. xAI general model with real-time X data integration.

API endpoint `grok-2` available for Grok 2.

Initial pricing set at $2.00/M input and $10.00/M output tokens.

Grok 2 adds native vision and image understanding capabilities.

Grok 2 supports function calling and structured tool use.