Compare/Onyx vs Sourcegraph Cody 3.0

AI tool comparison

Onyx vs Sourcegraph Cody 3.0

Which one should you ship with? Here is the side-by-side panel verdict, pricing read, reviewer split, and community vote comparison.

O

Developer Tools

Onyx

Self-hosted AI platform with RAG, agents, and 50+ connectors — MIT licensed

Ship

75%

Panel ship

Community

Paid

Entry

Onyx is a fully open-source, self-hostable AI platform that wraps any LLM with enterprise-grade features: retrieval-augmented generation (RAG), deep research flows, custom agents, code execution, image generation, and voice mode. It connects to 50+ data sources via indexing connectors or MCP, making it a full internal AI stack rather than a chat wrapper. The platform recently shipped version 3.1.1 and has accumulated 24.8k GitHub stars. Unlike managed AI platforms, Onyx is self-deployed — teams can run it on Docker, Kubernetes, or Helm, and the Community Edition is entirely MIT licensed with no feature gating. Enterprise features like SSO, RBAC, and audit logging are available for teams that need them. What sets Onyx apart is the combination of depth and openness. Most open-source chat UIs are thin wrappers. Onyx ships agentic RAG that ranked on deep research leaderboards, plus an admin layer for managing connectors, access control, and usage analytics — all without sending data to a third-party cloud.

S

Developer Tools

Sourcegraph Cody 3.0

Autonomous PR reviews and codebase Q&A powered by your code graph

Ship

75%

Panel ship

Community

Free

Entry

Cody 3.0 upgrades Sourcegraph's AI coding assistant with an autonomous pull request review agent that posts contextual inline comments directly on PRs, and a conversational Q&A interface that draws on Sourcegraph's code graph for whole-codebase context. Unlike generic LLM coding assistants, Cody uses Sourcegraph's existing code intelligence graph to ground answers in actual symbol relationships, call chains, and repository history. It targets teams already running Sourcegraph who want AI-augmented code review without switching to a new platform.

Decision
Onyx
Sourcegraph Cody 3.0
Panel verdict
Ship · 3 ship / 1 skip
Ship · 3 ship / 1 skip
Community
No community votes yet
No community votes yet
Pricing
Open Source (MIT) / Enterprise plans available
Free tier / $9/mo Pro / Enterprise contact sales
Best for
Self-hosted AI platform with RAG, agents, and 50+ connectors — MIT licensed
Autonomous PR reviews and codebase Q&A powered by your code graph
Category
Developer Tools
Developer Tools

Reviewer scorecard

Builder
80/100 · ship

50+ connectors out of the box plus MCP support means you can actually index your entire company knowledge base without writing glue code. Self-hosting on Docker took about an hour to get running. This is what I wanted Danswer to become — and it did.

78/100 · ship

The primitive here is clear: a code-graph-grounded LLM that understands your codebase at the symbol level, not just the file level — and Cody 3.0 puts that to work in two specific places: PR review comments and Q&A. The DX bet is right. Rather than asking devs to context-stuff a chat window, Sourcegraph lets the graph do the retrieval, which means you get answers like 'this function is called from 14 places and three of them pass null' instead of hallucinated summaries. The skip risk is that autonomous PR comments require tuning to not be noise — if the signal-to-noise ratio on inline comments is bad in week two, devs will disable it. But the underlying graph primitive is genuinely not replicable with a Lambda and three API calls — it's years of indexing infrastructure that earns its keep here.

Skeptic
45/100 · skip

Self-hosting an enterprise AI platform is not trivial — you own the infra, the updates, the security patches, and the connector maintenance. For small teams without a dedicated DevOps person, the operational overhead will eat the productivity gains. The MIT license is genuinely free until you need the enterprise features, at which point the pricing is opaque.

72/100 · ship

Direct competitor is GitHub Copilot's PR review feature, which ships with zero additional infrastructure for teams already on GitHub. Cody's actual advantage is the code graph — Sourcegraph has spent years building precise cross-repo symbol resolution that GitHub's Copilot still doesn't match on large monorepos or multi-repo codebases. The scenario where this breaks: teams with fewer than 20 engineers on a single mid-size repo who are already paying for Copilot Business have no rational reason to add Cody's overhead. What kills this in 12 months isn't a competitor — it's GitHub shipping better cross-file context in Copilot Enterprise and erasing the graph advantage. Cody ships on the strength of the graph moat; the question is how long that moat holds.

Futurist
80/100 · ship

The open-source enterprise AI stack is the play for companies that can't trust their proprietary data to third-party clouds — which is most regulated industries. Onyx is building the infrastructure layer for sovereign AI deployments, and 25k stars suggests the market agrees.

No panel take
Creator
80/100 · ship

Deep research that actually cites your internal docs rather than hallucinating sources is genuinely useful for content teams. The voice mode and image generation being bundled in means one deployment covers most creative workflows.

No panel take
Founder
No panel take
55/100 · skip

The buyer here is engineering leadership at mid-to-large enterprises already running Sourcegraph — that's a narrow installed base selling into a budget line that already has GitHub Copilot, Cursor, or both. The moat is real: the code graph is defensible infrastructure that took years to build. But the pricing architecture is a problem — Free and $9/mo Pro don't cover the actual infrastructure cost of running autonomous PR review at scale, which means the business only works if enterprise deals convert, and the enterprise sales cycle for Sourcegraph is long and contested. When GitHub bundles better AI review into Copilot Enterprise at no incremental cost, the standalone Cody value prop collapses for everyone except the multi-repo power users. The expand story within existing Sourcegraph accounts is credible; the net-new acquisition story against GitHub's distribution is not.

PM
No panel take
74/100 · ship

The job-to-be-done is specific: 'give me a reviewer who actually understands the full codebase before commenting on my PR,' which is a real and painful gap — most AI review tools comment on diffs without knowing what changed downstream. Cody 3.0's graph-backed context directly attacks that gap. Onboarding for existing Sourcegraph users is presumably fast since the index already exists; for new users it's a longer setup tax that could kill early momentum. The completeness question is whether the PR review agent integrates into the GitHub/GitLab review UI natively enough that engineers don't need to context-switch — inline comments are the right surface, but the product lives or dies on whether those comments are precise enough that teams keep them enabled after the honeymoon period. The opinionated bet on graph-backed context over naive RAG is exactly the right product call.

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