Coasty vs Kimi: Features, Pricing & Which Is Better (2026)
A side-by-side comparison of Coasty and Kimi — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.
Coasty
Coasty
Computer-use AI agent and API (85.60% OSWorld) that browses, clicks and types across real desktop apps to finish work end-to-end.
Key features
- Best-in-Class Computer Use: Ranked #1 on OSWorld at 85.60%, executing long-horizon tasks across real desktop applications.
- Predict API: `/v1/predict` accepts a screenshot and returns the next action as structured JSON at $0.05 per call.
- Always-On Virtual Machines: Persistent, always-on VMs let agents keep state between tasks and pick work up where they left off.
- Agent Swarms: Run multiple agents in parallel to fan out across steps or accounts, cutting wall-clock time on repetitive work.
- 1,000+ App Integrations: Ships with native integrations to common productivity apps like Gmail and Slack out of the box.
- Synthetic Trajectory Data: Delivers custom long-horizon multimodal training trajectories verified before delivery for enterprise buyers.
Best for
- Back-Office Automation: Insurance, accounting and freight teams delegate repetitive desktop work — data entry, form filling, portal ops — to agents.
- Autonomous Web Tasks: Consumers ask Coasty to book appointments, research options and complete purchases end-to-end.
- Developer Automation: Engineers embed the Predict API into their own harnesses to build custom agentic workflows.
- Healthcare Ops: Clinics use computer-use agents against legacy systems that lack modern APIs.
- Data Collection at Scale: Enterprises order synthetic multimodal trajectories tuned to their apps for model fine-tuning.
Kimi
Moonshot AI
An AI platform from Moonshot AI offering K2.x language models, coding agents, Agent Swarm and tools for full‑stack site builds and agent teamwork.
Key features
- K2.x Model Family: Provides Kimi K2-series models (e.g., K2.6, K2.5) optimized for reasoning and coding workloads with very large context windows (reported up to 256K tokens) to handle large codebases and long documents.
- Kimi Code / CLI Agent: A terminal-first coding agent (Kimi Code CLI) that can read and edit code, execute shell commands, run tests, search the web, fetch URLs, and autonomously plan multi-step development tasks within a developer workflow.
- Agent Swarm Orchestration: Multi-agent orchestration (Agent Swarm) designed to distribute massive tasks across coordinated agents for parallelization, task decomposition, and large-scale automation.
- Document-to-Skill Conversion: Converts documents into reusable skills or knowledge artifacts so teams can turn internal docs into callable capabilities for agents and workflows.
- Claw Groups (Agent Teamwork): Previewed group/team features (Claw Groups) enabling agent collaboration, role assignment, and shared state for complex multi-agent problem solving.
- Tool Calling and Web Integration: Native support for tool calls such as SearchWeb and FetchURL, enabling agents and models to retrieve live web content and interact with external tools during reasoning.
- Open-Source Components & Self-Hosting: Provides open-source models (e.g., Kimi-Dev-72B) and CLI tooling under permissive licenses for local deployment via vLLM/other serving stacks.
- API Ecosystem and SDKs: Hosted API access and SDKs for integrating Kimi models and agents into applications, plus community resources and documentation for developers.
- Multiple model variants: kimi-k2, kimi-k2-thinking, kimi-k2.5 and kimi-for-coding (Kimi Code)
- 256K token context window for large-context tasks and large codebases
- Kimi Code: coding-optimized model with built-in web search and URL fetch tools
- Kimi Code CLI (open-source, Apache 2.0) — terminal agent that can read/edit code, execute shell commands, search/fetch web pages and plan autonomously
- Open-source Kimi-Dev-72B optimized for software engineering and RL-based improvement; available on GitHub and Hugging Face
- API access (official Kimi API) and third-party access via Groq and OpenRouter (OpenRouter requires provider presets and special max_tokens settings)
- Supports tool calling (SearchWeb, FetchURL) and sandboxed code execution in agent workflows
- SDKs and CLI packages (repository contains sdks/kimi-sdk and TypeScript tooling)
- Model serving examples using vLLM (CUDA requirements and tensor-parallel settings provided in docs)
- Supports agent orchestration concepts (Agent Swarm, Claw Groups preview) and MCP/ACP interoperability protocols
Best for
- Full-Stack Website Generation: Use K2.6-powered workflows to generate, wire up, and iterate full-stack website codebases and deployment scripts with context-aware edits across many files.
- Autonomous Multi-Agent Workflows: Coordinate large tasks (data extraction, multi-step engineering tasks, or batch processing) by dispatching subtasks to Agent Swarm for parallel execution and aggregation.
- Developer Productivity & Repair: Run Kimi Code CLI to inspect failing test suites, propose and apply patches, execute tests in a sandbox, and iterate until CI passes—accelerating bug fixes and PR generation.
- Knowledge Automation: Convert company docs, SOPs, or technical guides into reusable agent skills so internal agents can answer queries, run procedures, or populate templates with organizational knowledge.
- Long-Context Research & Analysis: Analyze and summarize very long documents, code repositories, or large datasets using the extended context window models to produce cohesive insights without manual chunking.
- Self-Hosted Research & Experimentation: Download open-source Kimi-Dev models to run locally (vLLM, torch backends) for offline research, fine-tuning, or private deployment when data privacy or customization is required.
- Autonomous coding agents that write, run, and iterate on code with web/context tools
- Large-codebase code comprehension, refactoring, and bulk changes using 256K context
- Full-stack website generation and rapid prototyping (as advertised on the official site)
- Automated issue repair and test writing (Kimi-Dev RL-trained to patch repos and pass test suites)
- Agent orchestration for massive tasks using Agent Swarm and group/team agent coordination
- Research and on-prem deployment of coding models via vLLM or Hugging Face downloads