Kimi K3.1 Pro vs Grok Build 0.1
Compare Kimi K3.1 Pro and Grok Build 0.1 side-by-side. See comparisons of price, response speed, accuracy, and file support to choose the best model for your task.
Overview
Kimi K3.1 Pro vs Grok Build 0.1 Overview
Everything you need to know about these AI models, including capabilities, performance, pricing, and technical details.
Kimi / Kimi K3.1 Pro
proDescription
Moonshot AI's newest flagship and the first model in its K3.1 series, built as a post-trained upgrade to Kimi K3. Moonshot reports Terminal-Bench 4.0 results just behind Claude Opus 5.5, a top OfficeQA Pro v2 score, and far fewer factual errors than K3. It reads text and images across a very large context and reasons before answering. Moonshot is releasing open weights.
xAI / Grok Build 0.1
proDescription
xAI's coding model, purpose-built for autonomous software engineering rather than chat. Grok Build 0.1 acts as an engineering agent: it reasons through a problem, writes code, runs your terminal, checks for errors, and fixes its own mistakes in a loop. It reads text and images, always reasons before answering, and natively supports Model Context Protocol. Built for long-horizon coding that runs with little supervision, at a low cost, tuned for agent loops.
About
About
Capabilities
Capabilities
Comparison
Why Use Kimi K3.1 Pro and Grok Build 0.1?
Aymo gives you more than access to individual models—it provides a complete multi-model AI workspace designed for productivity.
Kimi / Kimi K3.1 Pro
proClose To Opus 5.5
Moonshot reports 65.7% on Terminal-Bench 4.0, just behind Claude Opus 5.5 at 66.4% and ahead of GPT-6 Astra at 58.2%. These are Moonshot's own results.
Reasoning Built In
Reasons through each request before it replies. Moonshot reports 61.2% on its long-horizon coding test, up from 55.95% for Kimi K3, after much larger post-training.
Room For Long Inputs
A very large context window of about 1 million tokens, according to Moonshot. Load a full repository, long filings, or a research set in one request.
Finance And Office Work
Moonshot reports a top score of 64.4 on OfficeQA Pro v2, and a rise in Financial Research from 58.8 to 70.4 over Kimi K3 on its internal tests.
Fewer Factual Errors
On Moonshot's hardest accuracy test, claim-level errors fell from 23.4% with Kimi K3 to 8.3%. It has no native web search, so current data comes through connected tools.
Text And Image Input
Reads text and images on Aymo. Moonshot also built it for 3D work from sketches and reference images, scoring 72.8 on BenchCAD without tools, level with Claude Opus 5.5.
xAI / Grok Build 0.1
proAutonomous Engineering Agent
Purpose-built to act as an engineering agent, not a code generator. Refactors across a codebase, invokes tools, runs tests, and iterates through multi-step development tasks, picking up your project conventions as it works.
Reasoning Always On
Every response includes structured reasoning before the final output, and effort is not configurable. Built for deliberate, multi-step work rather than instant answers, so it plans before it acts.
Repository-Scale Context
A large context window, roughly 190,000 words, is sufficient to hold a substantial codebase or a long agent history in a single session. Reporting notes no fixed output cap, so it can refactor large files in one go.
Structured Code Output
Supports structured outputs and a JSON schema, so it slots into agent pipelines and developer tooling. Built to produce parseable, tool-ready output rather than long-form prose.
Native MCP And Tool Use
Natively supports Model Context Protocol, so internal knowledge bases, proprietary APIs, and MCP servers plug in directly. Built to work inside existing developer tooling rather than a closed ecosystem.
Text And Image Input
xAI lists text and image input, with text output. Send source code, diagrams, UI mockups, or error screenshots in the same request. Audio and video are not supported.
Why Aymo
Why chat with Kimi K3.1 Pro and Grok Build 0.1 on Aymo AI?
Aymo gives you more than access to Kimi K3.1 Pro and Grok Build 0.1—it provides a complete multi-model AI workspace designed for productivity.
Compare Responses
See how Kimi K3.1 Pro and Grok Build 0.1 performs alongside Claude, Gemini, Grok, and other leading AI models.
One Workspace
Keep all your AI conversations, files, and prompts in a single organized workspace.
Switch Models Instantly
Move between different AI models without restarting your conversation.
Upload Once
Use the same files across multiple AI models without uploading them again.
Save & Organize
Bookmark important chats, organize projects, and return anytime.
Work Together
Share conversations and collaborate with teammates in one place.