Pi 1.4.0 released
A feature release adding image input for classifiers, improved summaries, and terminal enhancements, plus numerous fixes.
What changed in 1.4.0
- Classifier models on TypeSafe, Cloudflare Workers AI, and OpenRouter now accept images as input.
- Summary generation uses the model's full output limit instead of a fixed cap, preventing failures on long reasoning.
- Codemode scripts queue when workers are busy instead of failing immediately; limit raised via PI_CODEMODE_MAX_WORKERS.
- Terminal support for OSC 8 hyperlinks, truecolor, and inline images in Rex; fixes for mouse tracking and keyboard modes.
- Default models updated: GitHub Copilot to gpt-6.1-sol, NVIDIA to nvidia/nemotron-3.5-super-vl-120b-a12b, Xiaomi to mimo-v2.6-pro.
Check before you update
- generateSummary() and generateSummaryWithUsage() no longer use the reserveTokens parameter; compaction.reserveTokens now only controls when compaction starts.
Summarised by AgentGid from Earendil Inc. (created by Mario Zechner)'s official release notes on GitHub, as reported there; read the original before relying on it. Price, status and release dates come from our daily data.
Pi at a glance
| What it is | Minimal, extensible open-source coding agent harness with interactive TUI, print/JSON, RPC and SDK modes, created by Mario Zechner and now maintained by Earendil Inc. It supports 15+ model providers through API keys or … |
|---|---|
| Latest version | 1.4.0 is the latest stable release we track. |
| Release pace | 13 stable releases in the last 30 days; 1.4.0 came 6 days after the previous one |
| Price | Free (OSS). Free and MIT-licensed; costs are those of the chosen model provider. Pi Durable (experimental) is also free per the 1.0 announcement. (checked Oct 5, 2026) |
| Downloads, last 7 days | 2.7M down 34.7% |
| Gid Score | 74 #7 in Terminal coding agents |
