Non-reasoning variant of Grok 4.20 optimized for fast, direct responses without extended deliberation. Same 1M context window and image understanding as the reasoning variant, ideal for high-throughput workloads where step-by-step thinking is not required.
- Non-reasoning variant delivering fast, direct responses without extended thinking overhead
- 1M token context window matching the reasoning variant for long-context use cases
- Function calling and structured outputs supported for tool-driven workflows
- Image understanding with JPEG/PNG input support up to 20MiB per file
- Cost-effective $1.25 input / $2.50 output pricing with cached input at $0.20/M
Web Search
Search the web and X for real-time info.
JSON Mode
Output responses in valid JSON format.
Code Execution
Run Python code to compute and analyze.
Model Information
Supported Formats
Grok 4.5xAI's most intelligent and fastest flagship model, succeeding Grok 4.3. Recommended for code and chat tasks with a 500,000-token context window, image understanding, and live search integration. Knowledge cutoff February 1, 2026.
Grok 4.3xAI's latest flagship model released April 30, 2026, leading the industry in non-hallucination rate, agentic tool calling, and instruction following. Features 1M token context window with cached input at $0.20/M and supports function calling, structured outputs, image understanding, and live search.
Grok Build 0.1Coding-specialized model optimized for software engineering tasks with 256K context window. Priced at $1.00 input / $2.00 output per 1M tokens - 20% cheaper than Grok 4.3 for code-focused workflows. Ideal for agentic coding, refactors, and large codebase analysis.