Releases·Tool Release
Show HN: Felan – an open source coding agent focused on efficiency
Developers released Felan, a free open-source coding agent built as an opinionated version of Pi. It targets lower coding costs through model routing, context management, and compact tool output, supporting many providers via both API usage and subscriptions. For practitioners, it offers a self-hosted way to cut token spend while keeping agents task-effective.
2 engagement1 sourceTue, Sep 8, 2026, 06:31 PM
AI Overview
- Felan, a free open-source coding agent built as an opinionated Pi fork, adds model routing, context management, and compact tool output to cut coding spend.
- Felan supports many providers via both API usage and subscriptions, aiming to give the model only what tasks need and avoid unnecessary model usage.
Related
Products·building
Felan: open-source, model-portable coding agent that reduces model spend
Felan is an open-source coding agent built on Pi that completes software work correctly while spending less on models. It uses model routing, progressive context, compact tool output, and explicit task state to cut wasted tokens. It targets developers who want lower cost without accepting cheaper-but-failed runs.
Felan is an open-source coding agent built on Pi that completes software work correctly while spending less on models. It uses model routing, progressive context, compact tool output, and explicit task state to cut wasted tokens. It targets developers who want lower cost without accepting cheaper-but-failed runs.
15 engagement1 sourceredditTue, Sep 8, 2026, 06:09 AM
Social·Community
Dev builds open-source Pi coding-agent extensions after finding Pi most token-efficient harness vs Claude Code and others
A developer who moved away from Claude Code over lock-in concerns describes adopting Pi as their daily-driver coding harness, calling it the most token-efficient coding harness available. They also open-sourced a set of 'Benchmaxxed' Pi extensions on GitHub and compared Pi against alternatives including OpenCode, Codex CLI, Omp, and the Deepseek harness.
A developer who moved away from Claude Code over lock-in concerns describes adopting Pi as their daily-driver coding harness, calling it the most token-efficient coding harness available. They also open-sourced a set of 'Benchmaxxed' Pi extensions on GitHub and compared Pi against alternatives including OpenCode, Codex CLI, Omp, and the Deepseek harness.
5 engagement1 sourceredditSat, Oct 10, 2026, 08:31 AM
Releases·Tool Release
Show HN: Faber, cost-efficient open-source coding agent that uses code graph
Faber, an open-source coding agent, was released on npm, emphasizing cost efficiency and code graph usage. It aims to provide a cheaper alternative for code assistance.
Faber, an open-source coding agent, was released on npm, emphasizing cost efficiency and code graph usage. It aims to provide a cheaper alternative for code assistance.
1 engagement1 sourcehackernewsSat, Aug 22, 2026, 06:54 PM
Products·launched
Wiyomi - coding agent with built-in cost-saving strategies
Wiyomi is a coding agent launched by a small team that builds in cost-saving strategies to reduce AI spend. It uses LLMs to perform coding tasks while aiming to minimize wasted tokens and API costs. It targets developers and engineering teams who want to build more without overspending on AI.
Wiyomi is a coding agent launched by a small team that builds in cost-saving strategies to reduce AI spend. It uses LLMs to perform coding tasks while aiming to minimize wasted tokens and API costs. It targets developers and engineering teams who want to build more without overspending on AI.
2 engagement1 sourcehackernewsThu, Oct 8, 2026, 10:46 AM
Releases·Tool Release
Developer builds open-source 'manager' pattern for AI coding agents, cutting costs 35-41%
A solo developer implemented a pattern from Cognition (the Devin team) where an expensive frontier model acts as a 'manager' that plans and reviews code changes but cannot edit files directly, delegating all mechanical work to a cheaper, faster model. The approach, published as open source for the opencode terminal coding agent, reportedly reduces costs by 35-41% while maintaining quality. Subsequent posts show the pattern extended to other tools like Claude Code, with users reporting token reductions of 58.6% and cost cuts of 45.8% on SWE-bench Lite using Codex 5.6 as manager and cheaper models as executors.
A solo developer implemented a pattern from Cognition (the Devin team) where an expensive frontier model acts as a 'manager' that plans and reviews code changes but cannot edit files directly, delegating all mechanical work to a cheaper, faster model. The approach, published as open source for the opencode terminal coding agent, reportedly reduces costs by 35-41% while maintaining quality. Subsequent posts show the pattern extended to other tools like Claude Code, with users reporting token reductions of 58.6% and cost cuts of 45.8% on SWE-bench Lite using Codex 5.6 as manager and cheaper models as executors.
Updated Mon, Jul 20, 2026, 12:19 AM — Users report extending the pattern to Claude Code and Codex 5.6, achieving up to 58.6% token reduction and 45.8% cost sa
30089 engagement3 sourcesredditSun, Jul 12, 2026, 05:35 PM