CursorvsCodex CLIvsCline

3 agents, 3 evaluations — 0 community and 3 editorial — compared across overall score, task fit, reliability, cost, ease of setup, and drift over time.

Current verdict: Cursor currently leads Codex CLI by 0.2 points on Ruling's 10-point scale; confirm the top-review context before shortlisting.

Current signal

last 90 days

Freshness

2 of 3 loaded evaluations are from the last 90 days

Version context

reviews now ask model/runtime and tier

AI-agent quality changes with model releases, CLI/client updates, pricing limits, and vendor defaults. Treat all-time scores as historical context; prioritize recent reviews and model/runtime notes before standardizing on a tool.

ruling.so/compare/cursor-vs-codex-cli-vs-cline

Scorecard

Winners are highlighted only when comparable review-derived scores exist.

3 evaluations considered

Overall

Weighted aggregate verdict across the review.

9.4/10

4.7/5 source average.

9.2/10

4.6/5 source average.

8.6/10

4.3/5 source average.

review avg
Task fit

How well the agent matches the job users hired it for.

9.6/10

4.8/5 source average.

9.6/10

4.8/5 source average.

9.0/10

4.5/5 source average.

review avg
Reliability

Consistency, uptime, and repeatability under real workflows.

9.0/10

4.5/5 source average.

9.0/10

4.5/5 source average.

8.2/10

4.1/5 source average.

review avg
Ease of setup

How quickly teams can get from signup to useful output.

9.6/10

4.8/5 source average.

8.8/10

4.4/5 source average.

8.0/10

4.0/5 source average.

review avg
Cost efficiency

Whether the results justify the seat, usage, or platform cost.

8.4/10

4.2/5 source average.

8.2/10

4.1/5 source average.

8.8/10

4.4/5 source average.

review avg
Drift score

How well quality holds up over longer sessions and releases.

9.0/10

4.5/5 source average.

9.0/10

4.5/5 source average.

8.4/10

4.2/5 source average.

review avg

At a glance

A truthful, data-backed summary of where each agent stands today.

Cursor

Anysphere · Coding Agents

Top score

Cursor is the most popular AI-powered IDE, built as a fork of VS Code with deep model integration across autocomplete, chat, and inline edits. It supports multiple frontier models and has become the reference point for all coding agent comparisons. Its CMD+K and Composer features enable both single-file edits and full multi-file agentic workflows.

Best signalBest default AI IDE for product teams shipping every week

Codex CLI

OpenAI · Coding Agents

Codex CLI is OpenAI's open-source terminal-based coding agent, positioned as direct competition to Claude Code and Aider. Running in your local terminal, it can read your codebase, write and edit files, and execute shell commands with configurable approval modes. As OpenAI's answer to Anthropic's Claude Code, it's generated significant interest among developers already in the OpenAI ecosystem.

Best signalThe strongest OpenAI-native terminal workflow

Cline

Cline (OSS) · Coding Agents

Cline is a VS Code extension that turns your editor into an autonomous coding agent, able to create/edit files, execute terminal commands, and use a browser — all with human-in-the-loop approval checkpoints. It has risen rapidly in the developer community thanks to its transparent action log and ability to use any API-accessible model. Cline is particularly strong for full-stack feature development where you want to supervise each step.

Best signalBest open-source choice for supervised IDE agent work

Pricing and specs

Static facts from the Ruling catalog, not prototype estimates.

Pricing
Freemium
Usage Based
Free
Price details
Hobby free; Individual Pro $20/mo; Teams Standard $40/user/mo; Enterprise custom
OpenAI API tokens; roughly $0.002–$0.02 per task depending on model
Free and open-source; you pay for your own LLM API keys
Model backbone
Cursor Models, Claude Sonnet 5, Claude Opus 5, Gemini 3.1 Pro, GPT-5.6, Grok 4.5
GPT-4.1, o4-mini
Claude Sonnet, GPT-4o, Gemini (user-configurable)
Setup complexity
Easy
Easy
Easy
Catalog facts
Verified Aug 21, 2026
Verified Aug 21, 2026
Verified Aug 21, 2026
Evaluations
1
1
1

Pricing and model availability change quickly. Ruling shows the latest catalog value we have verified from official sources; confirm on the vendor site before purchasing.

Top review for each

Most helpful published review per agent, pulled from current Ruling data.

Browse all reviews
Top review↓ most helpful
RE
Ruling Editorial — Engineering
Ruling editorial benchmark · older signal · Feb 18, 2026

Best default AI IDE for product teams shipping every week

Ruling editorial benchmark: Cursor remains the strongest default for product engineers who want chat, inline edits, and multi-file changes inside a familiar VS Code-style workflow. It is fastest when the codebase is already organized and the user can review each patch carefully. The main limitation is that large refactors still need a senior engineer shaping the plan and checking edge cases.

31 found helpfulRead →
RE
Ruling Editorial — Engineering
Ruling editorial benchmark · last 30 days

The strongest OpenAI-native terminal workflow

Ruling editorial benchmark: Codex CLI is a strong terminal agent for developers who want repository inspection, file edits, command execution, and approval controls in the OpenAI ecosystem. The open-source client and rapid release cadence make the workflow inspectable and actively maintained. Teams should still control sandbox permissions, review generated changes, and track model or subscription costs on long-running tasks.

27 found helpfulRead →
RE
Ruling Editorial — Engineering
Ruling editorial benchmark · last 30 days

Best open-source choice for supervised IDE agent work

Ruling editorial benchmark: Cline gives developers an open-source agent across the IDE and terminal, with file editing, command execution, browser use, and human approval around tool actions. Its CLI, JetBrains support, and parallel Kanban workflows extend it beyond a single VS Code chat panel. The tradeoff is operational: model choice, API cost, permissions, and parallel worktrees require more deliberate setup than a bundled commercial IDE.

23 found helpfulRead →

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