ai coding agents · comparison

Best AI coding agents (2026)

AI coding agents range from in-editor autocomplete to fully autonomous engineers that open PRs. Pricing splits between flat per-seat (predictable) and usage/credit-based (scales with how hard the agent works). Below, each tool's real cost and autonomy level are decoded and dated.

most capable agentClaude Codeterminal agent, flat sub from ~$20/mo or API usage
best in-editorCursorfast, flat per-seat from $20/mo
free / open-sourceClinebring your own API key, pay only model costs
  1. Claude Code · ~$20/mo · Terminal-native agentic coding
  2. Cursor · $16/mo (Individual/Pro) · AI coding / autonomous PRs
  3. OpenAI Codex · ~$20/mo (via ChatGPT Plus); also free tier and pay-as-you-go API · ChatGPT subscribers who code
  4. GitHub Copilot · $10/mo (Pro) · in-IDE coding
  5. Windsurf · ~$20/mo · Agentic AI coding in a full IDE
  6. Cognition Devin · $20/mo (Pro) + usage overage · autonomous coding

Pricing decoded and verified 2026-05-30 against each vendor's live page; volatile figures flagged "verify live".

Dirr is reader-supported. If you sign up through a link here we may earn a commission. It never changes the data or the order. Numbers come from each vendor's live pricing page; volatile ones are marked verify live.

Claude CodeTerminal-native agentic…
CursorAI coding / autonomous…
OpenAI CodexChatGPT subscribers who…
GitHub Copilotin-IDE coding
WindsurfAgentic AI coding in a…
Cognition Devinautonomous coding
Augment Codeenterprise codebase…
ClineDevelopers who want a…
AiderTerminal-native, BYOK…
CodeRabbitPR code review
Lovableprompt-to-app…
v0 by Vercelprompt-to-app UIs
Base44no-code internal tools
Blitzyenterprise autonomous…
entry price
~$20/moverify live
$16/mo
~$20/moverify live
$10/mocheapestverify live
~$20/moverify live
$20/moverify live
~$20/moverify live
Freeverify live
Freeverify live
~$24/user/mo
~$25/moverify live
Free, then ~$30/seat/moverify live
~$16/moverify live
Freeverify live
pricing model
Two paths: a flat Claude…
per-seat subscription +…
Bundled into ChatGPT…
per-seat + usage credits
Freemium subscription…
base subscription + usage…
per-seat plan with…
Free open-source tool;…
Free open-source tool;…
per-seat (per developer)…
per-credit (credits…
per-seat plan +…
flat tier + credit…
Tiered subscription plus…
free tier
No free Claude Code…most
Yes, Hobby plan at $0,…
Yes. Codex is included…
Free plan: 2,000…
Yes. Free plan at $0/mo…
Yes. $0/mo plan with…
Yes — a permanent free…
Yes. The Open Source…
Entire tool is free and…
Free plan
Free plan: 5 daily…
Free plan: $0/mo with…
Free plan: 25 message…
Yes, free spec…
self-host
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
Yes
mcp
Both
Both
Both
Both
Client
Both
Client
Client
None
Client
Both
Both
None
None
Visit → Claude Code details →
Visit → Cursor details →
Visit → OpenAI Codex details →
Visit → GitHub Copilot details →
Visit → Windsurf details →
Visit → Cognition Devin details →
Visit → Augment Code details →
Visit → Cline details →
Visit → Aider details →
Visit → CodeRabbit details →
Visit → Lovable details →
Visit → v0 by Vercel details →
Visit → Base44 details →
Visit → Blitzy details →
Claude Code Terminal-native agentic coding
entry price ~$20/moverify live
pricing model Two paths: a flat Claude subscription (Pro/Max/Team/Enterprise) that bundles Claude Code with shared usage limits, or pay-as-you-go API token billing via a Claude Console account.
free tier No free Claude Code tier. The Claude Free plan does not include Claude Code; the cheapest access is Pro at $20/mo (or $17/mo billed annually). API/Console usage is pure pay-as-you-go with no free allotment beyond any promotional credits.most
self-host No
mcp Both
Visit Claude Code → details →
OpenAI Codex ChatGPT subscribers who code
entry price ~$20/mo (via ChatGPT Plus); also free tier and pay-as-you-go APIverify live
pricing model Bundled into ChatGPT subscriptions (per-user/mo) with usage limits, plus pay-as-you-go API token pricing for heavier or programmatic use. No standalone Codex subscription.
free tier Yes. Codex is included on the free ChatGPT plan ($0/mo) for basic exploration with limited usage; meaningful daily use needs a paid plan or API key.
self-host No
mcp Both
Visit OpenAI Codex → details →
Windsurf Agentic AI coding in a full IDE
entry price ~$20/moverify live
pricing model Freemium subscription with daily/weekly usage quotas (replaced the old monthly credit pool in March 2026); extra usage billed at per-token model API prices. Enterprise billed via Agent Compute Units (ACUs).
free tier Yes. Free plan at $0/mo gives a light daily/weekly Cascade quota plus unlimited Tab autocomplete; positioned as an evaluation tier (roughly 2-3 days of active Cascade coding before hitting limits, then only zero-cost models remain).
self-host No
mcp Client
Visit Windsurf → details →
Augment Code enterprise codebase agents
entry price ~$20/moverify live
pricing model per-seat plan with included credit pool + usage-based credit top-ups
free tier Yes — a permanent free 'Community' plan exists (for light usage). Augment's own blog states trial users can 'move to the free plan' after using credits. The trial itself is a ~30,000-credit pool that requires a valid credit card; the free Community plan may use your data for model training.
self-host Yes
mcp Client
Visit Augment Code → details →
Cline Developers who want a free, transparent BYOK coding agent
entry price Free (open source)verify live
pricing model Free open-source tool; cost is usage-based AI inference (bring-your-own API key paid to providers, or pay-as-you-go credits via the Cline provider). Enterprise is custom-quoted.
free tier Yes. The Open Source plan is free forever for individual developers: VS Code extension, CLI, MCP marketplace, BYOK or Cline provider, multi-root workspaces, community support. You only pay for AI inference when you use models, and some models in the Cline provider are tagged FREE.
self-host Yes
mcp Client
Visit Cline → details →
Aider Terminal-native, BYOK AI pair programming
entry price Free (open source)verify live
pricing model Free open-source tool; you pay only your chosen LLM provider's API usage (BYOK).
free tier Entire tool is free and Apache 2.0 open source. With a free OpenRouter model or a local Ollama model, total cost can be $0; otherwise you pay your model provider's per-token API rates.
self-host Yes
mcp None
Visit Aider → details →
CodeRabbit PR code review
entry price ~$24/user/mo (annual) / $30 monthly
pricing model per-seat (per developer) + usage-based add-ons
free tier Free plan ($0): PR summaries + IDE/CLI reviews, unlimited repos; free forever on public repos; 14-day Pro Plus trial
self-host Yes
mcp Client
Visit CodeRabbit → details →
Base44 no-code internal tools
entry price ~$16/mo (Starter, billed annually; $20 monthly)verify live
pricing model flat tier + credit consumption (message credits + integration credits)
free tier Free plan: 25 message credits/mo (5/day cap) + 100 integration credits/mo
self-host No
mcp None
Visit Base44 → details →

// scraped weekly · every cell carries source + date · volatile cells flagged verify live

FAQ

What is the best AI coding agent?

For autonomous terminal work, Claude Code and OpenAI Codex lead. For in-editor speed, Cursor, GitHub Copilot and Windsurf are strongest at flat per-seat pricing. For end-to-end issue-to-PR autonomy, Cognition Devin is most capable but usage-priced. Cline and Aider are open-source and cheapest (bring your own model).

How much do AI coding agents cost?

In-editor and terminal agents are flat or bundled (GitHub Copilot from $10/mo, Cursor and Claude Code from ~$20/mo). Autonomous agents like Devin add usage on top and can run far higher with workload. Open-source agents (Cline, Aider) cost only your model API usage.

Are there free or open-source AI coding agents?

Yes — Cline and Aider are open-source and let you bring your own API key, paying only model costs. They are the cheapest option but need more setup than a managed tool.

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