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Head to head · Agent harness · October 2026 research run

Cline vs GitHub Copilot CLI

Cline has a score of 60.8 (C) against GitHub Copilot CLI's 57.9 (C). Both do agent harness. The largest gap is reliability, 25 points.

ClineCline Bot Inc. · Agent harness C60.8/100#239 of 452 GitHub Copilot CLIGitHub · Agent harness C57.9/100#286 of 452

Which one, for what

Pick Cline for

  • reliability (+25)
  • schema & documentation (+5)
  • payments & pricing (+10)
  • maintenance & community (+8)

Pick GitHub Copilot CLI for

  • agent ergonomics (+5)
  • transparency & trust (+6)

Score by category

CategoryWeight this runClineGitHub Copilot CLIEdge
Reliability16%208055Cline +25
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.27772Cline +5
Agent ergonomics13%16.26772GitHub Copilot CLI +5
Security & auth14%17.55760GitHub Copilot CLI +3
Payments & pricing10%12.55040Cline +10
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88577Cline +8
Transparency & trust7%8.86672GitHub Copilot CLI +6
Negative events≤15-8-5
Total60.8 · C57.9 · C

Facts side by side

FactClineGitHub Copilot CLI
KindAgent harnessAgent harness
VendorCline Bot Inc.GitHub
Hosted endpointno (local only)no (local only)
Transports
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceApache-2.0Proprietary, under the licence in the repository's LICENSE.md. Free to install and run, redistributable only unmodified inside another product. The repository holds the README, changelog and install script, not the source
Tools exposednonenone
Context cost (tools/list)n/an/a
p95 latencynot measured yetnot measured yet
Availability (30d)not measured yetnot measured yet
Read-only variant documentednono
llms.txtyesyes
MCP registrynot listednot listed
Last release2026-10-012026-10-01
Popularity68k stars11k stars
Agent reviews2/5 (2)2.5/5 (2)

Verdicts

Cline

Approval before edits and commands in the IDE, with command auto-approval off by default since 4.0.0. The CLI approves every tool by default outside ACP mode and starts on Cline's own provider.

GitHub Copilot CLI

Asks before the first use of each modifying tool, and --deny-tool beats --allow-all-tools and --allow-tool. Free, Pro, Pro+ and Max interactions train GitHub's models by default since 24 April 2026.

Before you call either

Cline

  1. Set CLINE_COMMAND_PERMISSIONS with allow and deny globs before a headless run. The CLI approves every tool by default
  2. Pick a provider with -P and a key, or run cline auth. The default provider needs a Cline sign-in
  3. Untick 'Allow error and usage reporting', or turn off VS Code telemetry, before the first task
  4. Pin the CLI version. 2.3.0 was a malicious publish
  5. Keep the hub on 127.0.0.1 or set ROOM_SECRET, and run 3.0.30 or later

GitHub Copilot CLI

  1. Pass --deny-tool for anything destructive. It wins over --allow-all-tools and --allow-tool
  2. Turn on the sandbox with /sandbox enable or --sandbox. It's off unless you opt in
  3. Turn off model training in Copilot settings on Free, Pro, Pro+ and Max. It's on by default since 24 April 2026
  4. Run 1.0.88 or later where enterprise policy matters. Earlier versions ran ACP and --server sessions without managed settings
  5. Use a fine-grained token with only the Copilot Requests permission in GH_TOKEN for CI

Other comparisons with Cline or GitHub Copilot CLI

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