CodiumのAIエディタ — インライン補完とチャットに加え、Cascade エージェントフローを搭載。
コード実行ツール利用メモリブラウザ操作
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Cline vs Codex CLIwhich AI code agent should you pick in 2026?
Open-source autonomous coding agent that lives in your IDE.
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Cline vs Codex CLI — specs
| Spec | Cline | Codex CLI |
|---|---|---|
| Agent Rank | 77 / 100 (A) | 70 / 100 (B) |
| Autonomy | Semi-autonomous | Semi-autonomous |
| Pricing | Free · OSS | Free · OSS |
| Open source | Yes | Yes |
| Capabilities | Code, Tool use, Browser | Code, Tool use |
| Integrations | 2 apps | 2 apps |
| Verified | Verified | Verified |
| Released | May 2025 | Apr 2025 |
Agent Rank breakdown
Cline
Agent Rank
77/ 100
- 自律性
- 8
- 機能
- 6
- 連携
- 4
- 料金
- 10
- 完成度
- 8
- 検証性
- 10
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Codex CLI
Agent Rank
70/ 100
- 自律性
- 8
- 機能
- 4
- 連携
- 4
- 料金
- 10
- 完成度
- 6
- 検証性
- 10
自律性、機能、連携、料金、成熟度、編集部の検証を基に自動算出。デプロイごとに更新されます。 どのように算出されているか?
Pros & cons
Cline
メリット
- +Full transparency — every tool call and reasoning step visible
- +Bring-your-own model key keeps proprietary code on your network
- +Active OSS community, weekly releases
デメリット
- −You manage the API key + token spend ($40–120/mo at daily use)
- −Less polished editor UX than Cursor
- −Plan-then-execute mode requires manual gating each turn
Codex CLI
メリット
- +Zero-install terminal workflow — agent where engineers already live
- +Open source under permissive license; auditable end-to-end
- +Ideal for one-shot refactors, audits, and migrations
デメリット
- −No long-running session UI; not built for hour-long autonomous work
- −Less polished than IDE-native alternatives
- −You wire the model key + handle rate limits
Pricing
Cline
Open source
無料
Everyone
- +Full extension free under MIT
- +BYO model API key
- +All tools and approval modes
- +Self-host friendly
Codex CLI
Open source
無料
CLI-native engineers
- +Apache-2.0 binary
- +BYO OpenAI / Anthropic key
- +Composable from Makefiles + scripts
Which one should you pick?
Codex CLI
Pick Codex CLI if its specific capabilities (Code, Tool use) match what you need.
Try Codex CLI →Affiliate links. We may earn a commission at no extra cost to you.
Frequently asked
Should I pick Cline or Codex CLI in 2026?+
Pick Cline if its specific capabilities (Code, Tool use) match what you need. Pick Codex CLI if its specific capabilities (Code, Tool use) match what you need. Most working teams running both can use Cline for primary work and Codex CLI for the workflows where its specific strengths matter.
What's the price difference between Cline and Codex CLI?+
Both Cline and Codex CLI start in the same pricing range (Free · OSS vs Free · OSS). Total cost of ownership depends on your team size and volume — see the TCO calculator for your specific math.
Which is more autonomous, Cline or Codex CLI?+
Both Cline and Codex CLI are Semi-autonomous agents — neither has a meaningful autonomy advantage over the other. The decision should hinge on capabilities and pricing instead.
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コード実行ツール利用メモリDemo · hover to playOSSターミナルコーディングアシスタント — ペアプログラミング形式でその場でコードを編集し、随時コミット。
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See more alternatives: alternatives to Cline · alternatives to Codex CLI
Want the real monthly cost at your volume? Run the TCO calculator →
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