The 13 best coding agents for whole-codebase work (2026)

All 13 picks at a glance

#	Agent	Best for	Starts at
1	JAJetBrains AI	JetBrains IDE users who want several coding agents under one governed subscription	Free, then about $11 a seat a monthits pricing page
2	KCKilo Code	Developers who want to switch models freely, local ones included, with no lock-in	Free, then $15 a seat a monthits pricing page
3	GAGemini Code Assist	Teams standardized on VS Code or JetBrains who are already on Google Cloud	On quoteits pricing page
4	ACAugment Code	Engineering leaders at organizations who want AI agents running full SDLC loops end to end	From $20 a monthits pricing page
5	JUJunie	Developers and teams already standardized on a JetBrains IDE who want an agent	Free, then about $11 a seat a monthits pricing page
6	WAWarp	Developers and teams who want one open platform that runs and coordinates multiple coding agents	Free, then $20 a monthits pricing page
7	GCGoogle Antigravity CLI	Developers already inside the Google ecosystem (Google AI subscription, GCP billing)	Free, then $30 a seat a monthits pricing page
8	FAFactory	Engineering organizations that want AI agents handling more of the SDLC than code generation alone	From $20 a monthits pricing page
9	CLCline	Developers and teams who want a transparent, open-source, model-agnostic agent they fully control	Freeits pricing page
10	DEDevin	Engineering teams offloading well-scoped migration tasks without adding headcount	Free, then $20 a monthits pricing page
11	DDDevin Desktop	Developers who want a full, agent-native desktop IDE and the freedom to run several coding agents	Free, then $20 a monthits pricing page
12	CCClaude Code	Developers and teams who want a terminal-native, scriptable agent that composes with CI	From $20 a monthits pricing page
13	CUCursor	Professional developers who want a powerful AI agent woven into a familiar VS Code-based editor	Free, then $8 a monthits pricing page

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Checked between 24 October 2026 and 1 November 2026. “About” figures are converted at the European Central Bank rate of 30 October 2026.

13 agents, ranked. How we check

About this list

13 of 32 coding agents match “Whole-codebase work”. Of the rest: 16 on some plans only, 1 no, 2 unknown.

How the coding agents matching “Whole-codebase work” differ: 12 of 13 also match “Writes tests”, against 6 of 19 in the rest of the category.

The ranking

1. 1JA

   JetBrains AI

   A free plan before you pay

   Best forJetBrains IDE users who want several coding agents under one governed subscription

   Whole-codebase work: Yes — Air Governance gives agents a semantic index of the whole codebase instead of ad-hoc scanning, which is the repository-wide context a cross-repo change needs.“Let agents start from a semantic index of your code instead of scanning the whole codebase. Spend fewer tokens and get output that fits your project better.”'What you can do with Air Governance' – Give agents the right context · checked 2026-10-24

   Price

   Free, then about $11 a seat a month · source

   • MCP serverNot stated
   • APIYes
   • Open sourceNot stated
   • Self-hostNot stated

   Visit JetBrains AI ↗Read the review →Compare JetBrains AI
2. 2KC

   Kilo Code

   Developers who want to switch models freely, local ones included

   Best fordevelopers who want to switch models freely, local ones included, with no lock-in

   Whole-codebase work: Yes — Indexes the repository and runs multi-step repo-wide work such as migrations.“Kilo automatically indexes your repository, pulls in the most relevant files and symbols for every prompt, and uses ripgrep-powered search, AST-aware tooling, and persistent memory”Frequently asked questions, "Does Kilo understand my entire codebase?" · checked 2026-09-02

   Price

   Free, then $15 a seat a month · source

   • MCP serverNot stated
   • APIYes
   • Open sourceYes
   • Self-hostYes

   Visit Kilo Code ↗Read the review →Compare Kilo Code
3. 3GA

   Gemini Code Assist

   Teams standardized on VS Code or JetBrains

   Best forTeams standardized on VS Code or JetBrains who are already on Google Cloud

   Whole-codebase work: Yes — Local codebase awareness is quoted at a 1,000,000 token context window; Enterprise adds code customization indexed over private GitHub, GitLab and Bitbucket repositories.“Perform large-scale changes to your codebase, including adding new features, updating cross-file dependencies, helping with version upgrades, comprehensive code reviews, and more.”Features section, Local codebase awareness · checked 2026-09-02

   Price

   On quote · source

   • MCP serverNot stated
   • APINot stated
   • Open sourceNot stated
   • Self-hostNot stated

   Visit Gemini Code Assist ↗Read the review →Compare Gemini Code Assist
4. 4AC

   Augment Code

   The lowest monthly price we found

   Best forEngineering leaders at organizations who want AI agents running full SDLC loops end to end, with humans at the quality gates, rather than inline completion assistants.

   Whole-codebase work: Yes — The Context Engine indexes repositories and cross-repo relationships, and Cosmos coordinates work across repositories and tools rather than one working directory.“Relationship awareness — Understands how files connect across repos, services, and architectures.”What is the Context Engine? bullet list · checked 2026-10-22

   Price

   From $20 a month · source

   • MCP serverNot stated
   • APIYes
   • Open sourceNot stated
   • Self-hostYes

   Visit Augment Code ↗Read the review →Compare Augment Code
5. 5JU

   Junie

   Developers and teams already standardized on a JetBrains IDE

   Best forDevelopers and teams already standardized on a JetBrains IDE who want an agent that shares the same debugger, project index, and version control already built into their editor.

   Whole-codebase work: Yes — The vendor claims repository-wide edits rather than single-file assistance, and markets long-running migrations specifically as the case its asynchronous remote mode exists for.“It can introduce large-scale edits to your project, run tests or terminal commands, and use external tools when needed, while reporting progress to you.”Junie by JetBrains help page, opening paragraph · checked 2026-09-18

   Price

   Free, then about $11 a seat a month · source

   • MCP serverNot stated
   • APIYes
   • Open sourceNot stated
   • Self-hostYes

   Visit Junie ↗Read the review →Compare Junie