Elon Musk's xAI company, which recently acquired his other company X, has made its flagship Grok 3 model available via API. It can analyze images and answer questions, TechCrunch reports.

Several months have passed since the launch of Grok 3 and now it is available to developers. The company offers two versions of the model via API: Grok 3 and Grok 3 Mini with "reasoning" functions.

Prices for Grok 3:

  • $3 per million input tokens (~750,000 words);

  • $15 per million generated tokens.

Prices for Grok 3 Mini:

  • $0.30 per million input tokens;

  • $0.50 per million generated tokens.

Accelerated versions of both models are more expensive:

  • Grok 3: $5 (incoming), $25 (outgoing);

  • Grok 3 Mini: $0.60 (incoming), $4 (outgoing).

The Grok 3 is not cheaper than its competitors. xAI priced it at the level of Anthropic's Claude 3.7 Sonnet, which also has reasoning functions, but is more expensive than Google's recently released Gemini 2.5 Pro, which is generally considered to perform better on popular AI benchmarks. Moreover, xAI has been accused of manipulating Grok 3's performance in such tests.

In addition, as noted by users on X, the API version of Grok 3 has a smaller context window than previously stated. The current limit is 131,072 tokens (approximately 97,500 words), although in February, xAI claimed that the model supports up to 1 million tokens.