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Cosmic Agents vs Sanity Agent Context vs Hygraph AI: A Real Comparison

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Tony Spiro

April 27, 2026

Cosmic Agents vs Sanity Agent Context vs Hygraph AI: A Real Comparison - cover image

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The phrase "AI-powered CMS" has become meaningless. Every headless CMS vendor is using it. The real question is: what does the AI actually do?

Cosmic, Sanity, and Hygraph are three of the most actively developed headless CMS platforms in 2026. All three are investing in AI. But their approaches are categorically different, and the distinction matters for how you build.

This comparison looks at what each platform's AI actually does, where it stops, and which approach fits what kind of team.

What We're Comparing

Cosmic: Four distinct agent types (Team, Content, Code, Computer Use) that operate across your entire stack
Sanity Agent Context: A structured content delivery layer for external AI agents, plus the Content Agent for content operations
Hygraph: AI-assisted content features (generation, translation, enrichment) built into the editorial workflow, with no native agent product

These are not equivalent products doing the same thing at different price points. They represent three distinct philosophies about where AI belongs in a content platform.

Cosmic: Agents That Work Across Your Stack

Cosmic ships four agent types that operate at different layers of your development workflow:

Team Agents

Live in Slack, WhatsApp, and Telegram. They have persistent memory, custom personas, and configurable goals. A Team Agent can be your content lead (like Mia, the content agent writing this post), a growth assistant, a support agent, or anything else your team needs. They participate in your actual communication channels, receive messages, respond to them, and maintain context across conversations.

Content Agents

Generate and manage CMS content: blog posts, landing pages, AI images, AI video. They run on schedules, respond to webhooks, and chain into multi-step workflows. A Content Agent can publish a weekly roundup, generate product descriptions at scale, or update metadata across hundreds of objects.

Code Agents

Connect directly to GitHub repositories. They create branches, commit code, build features, fix bugs, and open pull requests. A Code Agent can receive a feature request in Slack and deliver a working pull request to your repository. This is not a content tool. It is a software development tool built into a CMS platform.

Computer Use Agents

Control browsers using visual AI. They record demo videos, extract data from web pages, cross-post media, and automate any browser-based workflow.

All four agent types chain together in Workflows. A single workflow can: generate content with a Content Agent, build a feature in GitHub with a Code Agent, and test the result with a Computer Use Agent. Each step runs in sequence, with real-time monitoring and optional approval gates.

The key distinction: Cosmic agents are not features inside a CMS dashboard. They are autonomous team members that operate across your content, codebase, and communication channels.

Sanity: Agent Context + Content Agent

Sanity's AI story has two distinct parts that are worth separating.

Agent Context

Agent Context is Sanity's framework for making your CMS content available to external AI agents via MCP. It provides:

Semantic search (embeddings generated automatically on your content)
GROQ + semantic query combination so agents can run structured queries with meaning-based constraints
Editorial control: published content is agent-accessible, drafts are not
Real-time sync so agents always have current content without reindexing

The use cases Sanity targets with Agent Context are things like: a shopping assistant that queries your product catalog with real business constraints, a technical support agent that searches your docs, or an internal routing agent that classifies incoming content.

Agent Context is infrastructure for other people's agents to use your Sanity content. It is not Sanity building agents that act on your behalf.

Content Agent

Sanity's Content Agent is focused on content operations inside the CMS:

Bulk edits across thousands of documents through conversation
Content audits: find missing fields, stale content, quality issues
Bulk replace URLs, brand names, or text patterns across large document sets
Transform press releases or briefs into structured articles
Search the web to identify content gaps

This is genuinely useful for large editorial teams. If you manage thousands of documents and need AI to enforce consistency at scale, the Content Agent is purpose-built for that problem. It integrates with Slack and exposes an API for embedding in other tools.

The scope: Sanity's Content Agent stays inside the CMS. It does not write application code, touch your GitHub repository, create branches, open pull requests, or deploy software.

Hygraph: AI Features, Not AI Agents

Hygraph is honest about what they offer: AI-assisted content features built into the editorial and content operations workflow. There is no dedicated Hygraph AI agent product.

What Hygraph does with AI:

Content enhancement: AI writing assistance, SEO optimization suggestions, metadata generation
Translation and localization: AI-powered translation with integrations like DeepL, field-by-field with schema integrity preserved
Workflow automation: AI enrichment triggered by content changes via their Agent Actions (event-driven APIs)
Content auditing: Find stale pages, missing metadata, terminology drift
Federation: Query distributed content sources in real time for AI-powered experiences

Hygraph's CPO Mario Lenz has written thoughtfully about what actually makes AI work at enterprise scale: governance, an operating model for outcomes, and federation. Their thesis is that AI features only matter if you have the content infrastructure to support them. That is a defensible position.

What Hygraph does not have:

Native AI agents that act autonomously on your behalf
Code agents that work in GitHub
Team agents that live in Slack or messaging channels
Multi-agent workflows that chain content, code, and browser automation

The honest framing: Hygraph is building AI-enhanced content operations. It is not building agentic software.

Side-by-Side: What Each Platform's AI Actually Does

Cosmic

Team agents in Slack, WhatsApp, Telegram: Yes
Content generation and management agents: Yes
Code agents (GitHub branches, PRs, commits): Yes
Computer Use / browser automation agents: Yes
Multi-agent chained Workflows: Yes
MCP Server: Yes (17 tools)
Agent Skills for Cursor, Claude Code, Copilot: Yes (16+ integrations)
Bulk content operations via AI: Yes
AI image generation: Yes
AI video generation: Yes
Content auditing via AI: Yes

Sanity

Team agents in messaging channels: Slack only (via Content Agent)
Content generation and management agents: Yes (Content Agent)
Code agents (GitHub branches, PRs, commits): No
Computer Use / browser automation agents: No
Multi-agent chained Workflows: No
MCP Server: Yes
Agent Skills for IDE tools: MCP only
Bulk content operations via AI: Yes (Content Agent's core strength)
AI image generation: Yes (via Content Agent)
AI video generation: No
Structured content delivery for external agents (Agent Context): Yes

Hygraph

Team agents in messaging channels: No
Content generation and management agents: No (AI-assisted features, not agents)
Code agents (GitHub branches, PRs, commits): No
Computer Use / browser automation agents: No
Multi-agent chained Workflows: No
MCP Server: No dedicated product
Bulk content operations via AI: Yes (via Agent Actions, event-driven)
AI translation (field-by-field): Yes
AI content auditing: Yes
Content federation for AI use cases: Yes (a genuine differentiator)

The Practical Question: What Layer Do You Need AI to Operate In?

This is the real decision. Not which platform has more AI features, but where you need AI to work.

Choose Cosmic if:

You want AI that operates across your full stack: content, code, browser, and communication channels
Your team needs Code Agents creating branches and opening pull requests automatically
You want AI team members living in Slack, WhatsApp, or Telegram with persistent memory
Multi-agent Workflows that chain content generation, code deployment, and browser testing matter to you
You use Cursor, Claude Code, or GitHub Copilot and want your CMS context built into your IDE's AI assistant

Choose Sanity if:

Your primary AI use case is managing large volumes of existing content through conversation
You need bulk editing, content audits, and gap analysis across thousands of documents
Your team is editorial-first and the bottleneck is content operations, not engineering
You want to make your Sanity content available to external AI agents via Agent Context
GROQ's query power is worth the learning curve for your data model

Choose Hygraph if:

Your priority is AI-assisted content workflows inside a governed, enterprise content platform
Federation across distributed content sources is a real architectural need
You need field-level AI translation with schema integrity for a global content operation
You want AI enrichment triggered automatically by content change events
You are not yet ready for autonomous agents and prefer AI that stays in an assisted, human-reviewed loop

Pricing Comparison (Verified April 2026)

Cosmic

Free: $0/month, 1 Bucket, 2 Team members, 1,000 Objects, 1 Team agent
Builder: $49/month, 2 Buckets, 3 Team members, 5,000 Objects, 3 Team agents
Team: $299/month, 3 Buckets, 5 Team members, 20,000 Objects, 10 Team agents
Business: $499/month, 5 Buckets, 10 Team members, 50,000 Objects, 25 Team agents
Additional users: $29/user/month
Free plan is genuinely free forever, no credit card required

Sanity

Free: $0/month, up to 20 seats, 10,000 documents
Growth: $15/seat/month, up to 50 seats, 25,000 documents
Enterprise: Custom
Notable: Dedicated support is a $799/month add-on. SSO is $1,399/month. An extra dataset is $999/month.

Hygraph

Free tier available
Scale and Enterprise tiers (contact for pricing)
Federation and advanced AI features are enterprise-tier

The Deeper Distinction: Infrastructure vs. Agents

Hygraph's CPO makes an important point in their AI content management writing: most AI in CMS today is "features sprinkled on top of legacy processes." They argue the real value comes from governance, an operating model for outcomes, and federated content infrastructure.

Sanity's Agent Context takes a different angle: instead of building agents, they are making Sanity the best content source for whatever agents you or your users are building. That is a real infrastructure play.

Cosmic's bet is different from both. The agents are not features on top of the CMS. They are the product. Cosmic's position is that the CMS of 2026 is not a place where humans store content and developers build on top of it. It is an agentic platform where AI team members participate in the full development and content lifecycle.

As FINN co-founder Maximilian Wuhr put it: "Cosmic is: us never having to ask a developer to change anything on the backend of our website." That is one version of what agents unlock. The ceiling is much higher.

Frequently Asked Questions

Does Hygraph have AI agents?
Not in the autonomous sense. Hygraph offers AI-assisted content features and event-driven AI enrichment via Agent Actions. There is no Hygraph agent that acts independently across your stack.

What is Sanity Agent Context?
Agent Context is Sanity's infrastructure layer that makes your Sanity content available to external AI agents via MCP. It provides semantic search, structured queries, and editorial access controls so third-party agents can query your content reliably. It is not Sanity building agents on your behalf.

Can Cosmic agents write code?
Yes. Cosmic Code Agents connect to GitHub repositories, create branches, commit changes, and open pull requests. This is one of the core distinctions from both Sanity's and Hygraph's AI offerings.

Which headless CMS has the best AI agents?
Depends on what you mean by "best." If you need agents that operate across content, code, and communication channels in an integrated platform, Cosmic is the only one of the three that ships that today. If you need the best AI for bulk content operations inside the CMS, Sanity's Content Agent is purpose-built for that. If you need AI-assisted content workflows with strong governance and federation, Hygraph is the most mature choice.

Is Cosmic free?
Yes. Cosmic's Free plan is $0/month forever, no credit card required. It includes 1 Bucket, 2 Team members, 1,000 Objects, and 1 Team agent (manual execution).