Agentic Index

Greptile vs Sonar (2026)

Both vendors last verified

Greptile builds a graph of your repository so review carries full codebase context, catching cross file bugs that diff only tools miss, free on Starter for one developer with 50 credits a month and for qualified open source, and on Pro sold as credits at $1 each with no seat fee, a review drawing 1, 3 or 10 credits by depth. That verdict is the Agentic Index coverage score, graded from each vendor's own published materials.

Sonar is the verification layer and automated review standard, free up to 50,000 lines of code, with paid cloud plans sized by lines of code, and since May 2026 its AI reviewer is Gitar, which reviews each pull request with codebase context, commits fixes under plain language merge rules and iterates until CI passes. The split is simple. Greptile finds the bug that spans four files, and Sonar guarantees the rules were checked every time.

On the Agentic Index coding agent ranking, neither Greptile nor Sonar clears the bar, which asks for all five merge loop capabilities documented in full. Greptile does not document human oversight and guardrails in full; Sonar does not document observability and auditability in full, nor human oversight and guardrails. 3 of the 96 vendors in the lane clear it. See the coding agent ranking

This comparison is published by Agentic Index, an independent agentic AI vendor research platform. Greptile and Sonar are each graded against the same 14 capability Agentic Index taxonomy, from the vendor's own public materials under the Agentic Index verification standard, alongside 1,084 researched vendors. No vendor pays for placement and no vendor has reviewed this page. How this evidence is graded

Choose Greptile if

  • Cross file bugs are what keeps getting through, and diff scoped review is why.
  • Repository graph context is the capability you are buying, not rule coverage.
  • Credit pricing above an included allowance matches bursty pull request volume.

Choose Sonar if

  • Consistency matters more than insight, with every rule checked on every change, deterministically.
  • Testing, security and governance rules matter most to you.
  • You need a quality gate that engineering standards or compliance will recognize.
Feature
G
Greptile
S
Sonar
Action & orchestration

Integrations & Tool Calling

Ability to connect agents to real systems through native integrations, OAuth-authenticated actions, custom tools, APIs, webhooks, or MCP-compatible tools.

Workflow Orchestration

Ability to sequence, branch, retry, route, and combine deterministic workflow nodes with autonomous agent steps.

Triggers & Channel Coverage

How agents wake up and where they work: schedules, webhooks, message events, CRM events, inbox events, chat, email, voice, and collaboration tools.

Knowledge & context

Knowledge Grounding & RAG

Ability to ground agent behavior in company data through document ingestion, retrieval, external knowledge APIs, semantic search, or RAG layers.

Memory & State Persistence

Ability to persist context across a run, conversation, workflow, user, team, or longer-term memory layer.

Control & trust

Human Oversight & Guardrails

Approval steps, consent checkpoints, escalation rules, structured guardrails, policy constraints, and pause/resume controls.

Security, Identity & Governance

RBAC, SSO, auditability, encryption, least-privilege tool access, compliance posture, and data handling policy.

Observability & Auditability

Traces, logs, execution histories, metrics, audit events, and debugging detail for production agent behavior.

Deployment & Data Residency

Deployment modes and options, including SaaS, dedicated cloud, VPC, on-prem, hybrid, local runtime, and self-hosting.

Solution readiness

Prebuilt Agents, Templates & Packs

Ready-made workflows, packaged employees, templates, blueprints, industry solutions, and role-specific agents that reduce time-to-value.

Platform extensibility

Model Flexibility & Routing

Ability to work across multiple foundation models, route tasks to different models, or let buyers bring their own providers and keys.

APIs, SDKs & MCP Extensibility

Composability layer: stable APIs, SDKs, MCP tool consumption/serving, custom tools, and integration into internal systems.

Testing, Debugging & Optimization

Testing, debugging, scoring, retries, fallbacks, quality gates, and optimization loops for improving agent workflows before and after deployment.

Specialist automation

Browser & Computer Use

Browser, desktop, or remote/local computer control for workflows that cannot be handled through stable APIs alone.

Pricing snapshot

Sourced from the Index pricing dataset · open each vendor's profile for full detail.

Pricing
G
Greptile
S
Sonar

Entry price

Lowest public entry point

Starter free (1 active developer, 50 credits a month). Pro is prepaid credits at $1 each, shared across the organization, with unlimited developers and no seat fees. Enterprise is custom, and a 14 day Pro trial is offered. SonarQube Cloud Team starts at $34 a month for up to 100k lines of code with Advanced Security, for under 50 developers, with a 14 day trial; free up to 50k lines of code, never expires. Gitar AI Code Review is $20 per user a month billed annually on Core and $40 on Pro, with a 14 day Pro trial. Enterprise is custom, with Gitar priced per PR.

Pricing confidence

How public the numbers are

Public, exact Public, partial

Billing

Primary billing axis

Prepaid credits at $1 each, shared across the organization, with no seat fees and unlimited developers. A Base review uses 1 credit, a Plus review 3 and an Apex review 10, and a TREX run adds 3. Enterprise is a custom contract, including self hosted deployment. Lines of code analyzed for SonarQube: Cloud tiers and Server licenses, priced per instance per year, both follow the size of the codebase. Gitar bills per user per month on Core and Pro and per pull request on Enterprise.

Variable cost

Workload / overage exposure

High variable cost Medium variable cost

Free tier / trial

Try before you buy

Free tierTrial
Free tierTrial

Buying motion

Self-serve vs sales call

Self-serve Mixed

Pricing verified

When this pricing was last checked

Product updates

Newest first, each linked to its source.

Greptile

  • · Agent capability

    TREX, Greptile's end to end testing agent, is now generally available.

    Source

Sonar

  • · Agent capability

    The SonarQube Remediation Agent on SonarQube Cloud can now propose fixes for flaws found by the Hunter Agent, such as broken access control, business logic errors and gaps in sign in and session handling.

    Source
  • · Agent capability

    Gitar, Sonar's code review agent, added Agentic Security, which reviews changes to agent skills together with the scripts they call to catch risks such as a removed approval step or leaked credentials, drawing on Sonar's collaboration with OpenAI on Daybreak.

    Source
  • · Deployment / data residency

    SonarQube Server 2026.5 LTA brings Sonar's Remediation Agent, Hunter Agent and Vortex to self managed deployments, including on premises and locked down VPCs, where before they ran only in SonarQube Cloud.

    Source

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