xAI's Grok 4.3 model now available on Amazon Bedrock

xAI's Grok 4.3 model is now available on Amazon Bedrock, offering a 1 million token context window and configurable reasoning effort for enterprise applications. The model excels in tasks requiring long input analysis, tool use, and instruction following, outperforming other frontier models on benchmarks for legal and financial document understanding. Grok 4.3 is accessible via OpenAI-compatible APIs on Amazon Bedrock, running on the Mantle inference engine. AI

IMPACT Expands enterprise access to long-context reasoning and tool-use capabilities via a major cloud provider.

RANK_REASON This is a product integration/availability announcement, not a new model release from a frontier lab.

Read on AWS Machine Learning Blog →

• Amazon Bedrock
• Artificial Analysis Omniscience
• Artificial Analysis Tau2 Telecom
• corporate finance
• Eric Jiang
• Grok 4.3
• Mantle
• OpenAI
• SpaceXAI
• Vals AI Case Law
• xAI

• model release
• product

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →