agentcad vs Cognition AI

Side-by-side comparison of features, pricing, and ratings

Analysis reviewed Live tool data as of 2026-10-18
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At a glance

DimensionagentcadCognition AI
Best forDevelopers and AI agents automating 3D CAD designEnterprise teams automating complex software engineering
Key featureScript-based CAD with pre-execution validation, spec-check, version diffingAutonomous planning & PR creation, FrontierCode eval, Auto-Triage
IntegrationsClaude Code, Cursor, build123d, CadQuery, WindsurfGitHub, Slack, Jira, Datadog, Windsurf IDE
Supported platformsLocal CLI (cross-platform)Windows VM, Android emulator, Desktop app
Output produceSTEP, STL, GLB, OBJ files, PNG renders, geometric metricsProduction code, PRs, bug fixes, test suites

Choose Cognition AI's Devin if you're an enterprise team needing autonomous software engineering with measurable productivity gains and a financial guarantee. Choose agentcad if you're a developer or AI agent building 3D parts programmatically with open-source, scriptable CAD tools. They solve fundamentally different problems: software engineering vs. mechanical design.

Try agentcadTry Cognition AI
agentcad
agentcad

Open-source MCP server that lets a coding agent write Python CAD scripts, render previews, and export STEP, STL, GLB, or OBJ parts.

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Cognition AI
Cognition AI

Cognition builds Devin, an autonomous AI software engineer that plans, codes, tests, and ships merge-ready pull requests inside your

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Pricing
Free
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Plans
$0
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Popularity
30 views
7.3k views
Skill Level
Intermediate
Advanced
API Available
Platforms
CLIAPI
WebDesktopAPICLI
Categories
🔌 MCP Servers & Agent Tooling🧊 3D Generation & Scanning
🛠️ Autonomous Coding Agents
Features
MCP server exposing CAD design, render, and export tools to coding agents
Works with Claude Code, Cursor, WindSurf, and other MCP-capable agents
CLI for local script execution and versioned STEP file output
build123d-native with CadQuery compatibility as an optional extra
Pre-execution static validation under 100 ms (syntax, missing show_object, unresolvable imports)
Structured JSON metrics per run on stdout: dimensions, volume, surface_area, face_count, edge_count, is_valid
Four-view PNG preview composite (top, bottom, upper iso, lower iso) per run
Export to STEP, STL, GLB, and OBJ for 3D printing and web viewers
Diff mode compares two versions with side-by-side renders, colored overlay, and overlap score
Parts mode names, colors, and groups assembly pieces so agents and humans can inspect fit
Spec-check mode measures finished geometry against a written JSON checklist
Topology report via `agentcad inspect` for debugging broken geometry
Zero-boilerplate scripts with pre-injected build123d primitives, show_object, and edit helpers
agentcad init installs a Claude Code skill plus an AGENTS.md (or CLAUDE.md) workflow block
Runs locally with no signup — files never leave your machine
Autonomous planning, coding, testing, and pull request creation inside your repo
SWE-2 coding model launched September 10, 2026 with multiple effort levels
SWE-1.7 coding model (July 2026) positioned as frontier intelligence at lower cost
Fusion harness for the Fable and Astra models, shipping in Devin Desktop and CLI
Vendor claim of up to 39% higher efficiency on major coding benchmarks with Fusion
FrontierCode 1.1 benchmark scoring whether code is merge-worthy, not just test-passing
FrontierCode rubrics covering correctness, test quality, scope discipline, style, and codebase standards
Auto-Triage for monitored bugs with automated fix pull requests
Security Vulnerability Remediation Program for clearing backlog findings
Session persistence so long jobs survive restarts instead of starting over
Scheduled Sessions that maintain state across recurring runs
Auto-fixes for review comments on open pull requests
Embedded IDE you can take over, plus an interactive browser Devin drives itself
Devin for Terminal CLI with /handoff to cloud Devin
Native Windows VMs for cross-platform builds and testing
Integrations
Claude Code
Cursor
Windsurf
GitHub
Slack
Microsoft Teams
GitLab
Bitbucket
Linear
Jira
Databricks
MongoDB
PagerDuty
Windsurf IDE

Who should pick which

  • Enterprise engineering team lead
    Pick: Cognition AI

    Devin handles complex multi-step tasks (bug triage, legacy modernization, cross-platform builds) with a productivity guarantee, integrating with their existing toolchain (GitHub, Jira, Datadog).

  • AI agent developer automating CAD
    Pick: agentcad

    Agentcad provides a tight agent feedback loop with validation, rendering, and export – perfect for AI agents generating 3D parts scriptable in build123d/CadQuery.

  • Solo founder building a hardware prototype
    Pick: agentcad

    Free, open-source, no signup, and works locally – ideal for iterative design with AI assistance without upfront costs.

  • Large enterprise with legacy COBOL code
    Pick: Cognition AI

    Devin explicitly supports COBOL modernization, automated testing, and legacy migration – tailored for this niche.

  • Hobbyist exploring parametric CAD
    Pick: agentcad

    Agentcad's zero-boilerplate scripts and MCP integration make it easy to experiment with generative CAD using agent prompts.

Frequently Asked Questions

agentcad vs Cognition AI: which should you choose?

Choose Cognition AI's Devin if you're an enterprise team needing autonomous software engineering with measurable productivity gains and a financial guarantee. Choose agentcad if you're a developer or AI agent building 3D parts programmatically with open-source, scriptable CAD tools. They solve fundamentally different problems: software engineering vs. mechanical design.

Can Cognition AI Devin design 3D parts?

No, Devin is an autonomous software engineer for code, not CAD. For 3D part generation, use agentcad.

Does agentcad require a subscription?

No, agentcad is completely free and open-source (Apache-2.0). No signup or payment needed.

What is the AI Productivity Guarantee from Cognition AI?

It's a $10M guarantee that Devin will deliver measurable productivity gains (human-equivalent hours). Announced June 2026.

Can agentcad export files for 3D printing?

Yes, it exports STL, GLB, and OBJ – all compatible with 3D printing workflows.

Which tools integrate with Devin?

Devin integrates with GitHub, Slack, Jira, Linear, Datadog, Windsurf IDE, VS Code, Android Emulator, and Windows VM.

Which AI agents work with agentcad?

Agentcad works as an MCP server with Claude Code, Cursor, and Windsurf – any agent supporting MCP.

Is there a free tier for Cognition AI?

Cognition AI offers freemium pricing, but enterprise plans with the guarantee are premium. Exact free tier limits are not detailed.

Can agentcad validate scripts before execution?

Yes, it catches syntax, missing show_object, and import errors in under 100ms before running the script.

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Explore each tool further

agentcad
View agentcad reviewagentcad alternatives
Cognition AI
View Cognition AI reviewCognition AI alternatives

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Last reviewed: July 2, 2026