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Compare/CodeCompanion.nvim vs JetBrains AI Assistant

CodeCompanion.nvimvsJetBrains AI Assistant

Generated from the two spec rows. Green marks the better value where a spec has a clear direction. Everything else is just different.

CodeCompanion.nvim
Oli Morris · IDE extension
#17OSSMCP
Panel
7.3
2 spec wins
Reliability
6.7
Usefulness
7.3
Cost
8.2
Longevity
6.8

“It can drive Claude Code, Codex, Gemini CLI, Goose, OpenCode and Cursor CLI, which makes your editor middle management.”

JetBrains AI Assistant
JetBrains · IDE extension
#18MCP
Panel
7.1
2 spec wins
Reliability
6.8
Usefulness
6.7
Cost
6.8
Longevity
8.2

“Writes your commit messages, which is the only part of the job most of us actually wanted automated.”

Spec by spec

SpecCodeCompanion.nvimJetBrains AI Assistant
Architecture
CategoryIDE extensionIDE extension
Runslocallocal
Platformsmacos, linux, windowsmacos, linux, windows
Context windownot documentednot documented
Protocols
MCP clientYesYes
MCP serverNoYes
Capabilities
Runs terminal commandsYesThrough the plugin's tools and through ACP-connected agent CLIs. Yes
Multi-file editsYesYes
Git operationsNoYes
Browser controlNoNoNo browser or Playwright tool; the built-in tools cover code analysis, debugging, files, databases and Jupyter only.
Sandboxed executionNoNo
Multi-agent orchestrationNoNo
Headless / CI modeNoNoAI Assistant runs only inside a JetBrains IDE and has no CLI or non-interactive mode; JetBrains' scriptable agent is the separate Junie CLI.
Models
BackboneanyClaude, Gemini, GPT, Grok
Bring your own modelYesYesBYOK accepts any OpenAI-compatible provider by base URL, plus Google Vertex AI via Express mode or Application Default Credentials.
Local modelsYesOllama is a first-class adapter, and custom adapters can point at any OpenAI-compatible endpoint. YesOllama and LM Studio are first-class BYOK providers configured by the base URL of the local instance.
Cost
Pricing modelbyokmixed
Starts at$0/mo$10/mo
Free tierYesYes
Bring your own keyYesYesYour own provider key or Vertex AI credentials, and BYOK plus local models work without a paid JetBrains AI subscription.
Openness
Open sourceYesNo
LicenseApache-2.0proprietary
GitHub stars6,888n/a

Which one would each critic pick

CriticCodeCompanion.nvimJetBrains AI AssistantPick
El Juez——not enough reviews
El Amigo7.87.5CodeCompanion.nvim — Pick it if you want one plugin covering chat, refactors and driving an external agent; pick avante.nvim when inline suggestion and instant application are the whole job.
El Crítico7.06.5CodeCompanion.nvim — One maintainer is shipping a chat client, an inline transformer, a workflow engine and an external-agent host in the same tree, and surface area is the risk.
El Profesor7.36.8CodeCompanion.nvim — Context is what the user put in the buffer rather than a hidden index, edits are buffer transformations, and no evaluation of either is published.
La Inversora6.07.8JetBrains AI Assistant — JetBrains sells this as a layer on IDEs developers already pay for, AI Pro at $10 and Ultimate at $30 with a credit that equals one dollar; pricing so legible it barely needs a sales team.
La Jefa6.57.5JetBrains AI Assistant — AI Enterprise is $60 per user, $3,600 a month for sixty, admins can preconfigure MCP servers and block engineers from adding their own, and the IDE is already on the invoice.
El Hacker9.06.8CodeCompanion.nvim — Apache-2.0, a first-class local adapter plus custom adapters for any compatible endpoint, and a tool-protocol client, all configured from a Lua table I keep in git.

Picks are derived from each critic's own scores. Humans vote on matchups on the duels page.

Want a third column? The compare tool handles any two agents. Three-way comparisons are on the roadmap once the spec rows are all verified.