Beta
Agent · Assistive

Plandex

Plandex is an open-source terminal AI coding agent optimized for large, multi-file tasks. Uses a separate context management layer to handle projects that exceed model context windows.

by Plandex·Fully open·MIT·Launched Apr 2024
Capability
no benchmarks
GitHub stars
15.2k
+46 · 7d
Harness
Plan + execute
Built-in tools
Environments
1
Terminal

No public benchmark submissions · yet

Plandex has not published benchmark scores on SWE-bench Verified, GAIA, OSWorld or τ-bench. Check the GitHub repo or vendor site for the latest · we track new submissions daily.

30-day star trajectory · velocity 46/100

15,00515,06115,11715,17315,2293/63/254/11STARS · 36 DAYS
Current
15,229
7d Δ
+46
30d Δ
+205

Brain · Harness · Tools · Environment

Brains
Which LLM powers it
claude-sonnet-4-6gpt-5
Harness
The loop pattern
Plan + execute
Tools
How it acts on the world
Built-in
Environments
Where it lives
Terminal

Pulled from the dataset · updated daily

What is Plandex?

Plandex is an open-source terminal AI coding agent optimized for large, multi-file tasks. Uses a separate context management layer to handle projects that exceed model context windows.

What model powers Plandex?

Plandex runs on claude-sonnet-4-6 and gpt-5. It uses a plan + execute pattern with built-in tools.

Is Plandex open-source?

Yes · Plandex is fully open-source under the MIT license. The harness, tools, and loop code are all public on GitHub at plandex-ai/plandex.

How popular is Plandex?

Plandex has 15,229 stars on GitHub and gained 46 in the last 7 days across 27 contributors.

Brains used

GitHub stats

Repoplandex-ai/plandex
Stars15,229
7d Δ+46
30d Δ+205
Contributors27
Created2023-10-24
Last commit2025-10-03
How we score
Methodology

Composite capability · momentum formula · data sources.

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