GitHub: https://github.com/oooscoos/Benzi Demo: https://varianttech.net/demo Benchmarks: https://varianttech.net/benchmark Roughly speaking, the way current AI coding agents/harnesses work is by either: a) Pulling in appropriate text snippets of code across multiple files and handing them to the agent, or b) Parsing code to make high dimenional embeddings to approximate a symptom map, and hand that to the agent. Both of these approaches skyrocket the token count, add to wall clock time, contribute to context drifting, add to the model's thinking tokens to discover the structure of the program, and then FORGET most of it when Claude Code compacts, or ALL of it if it's a multifile refactoring because all line numbers shift and need re-grepping. Benzi is built from the ground up to AVOID reading source code in the first place. It supplies the artificial intelligence model deterministic intelligence via tool calls. For example, when a model is about to make a code change, it could query "what functions feed this one?" -- half the time it isn't even necessary because the Benzi compiler already informs it of the blast radius before and after making edits, along with a complete static analysis check. Benzi Sonnet reads far less source code (9,125 lines) than Claude Code Sonnet (20,704), DeepSeek's harness (43,598), and OpenCode (65K+ LOC -- disqualified due to repeated failure) to accomplish the same tasks faster and cheaper. (benchmark link in comments) Benzi has truth tiers clearly seperating what can be analyzed with static analysis from what can't -- and then adding a runtime tracer on top to bridge the gap between the two (details in FAQ on github). It also has several bonus features such as a runtime tracer, syntax & semantic verified writes, context aware model written repro, mid task model upgrade if task is too difficult, and SEVERAL more. It currently supports Python · JavaScript · TypeScript · Java · C# · C++ · C · Go · Rust · Ruby, and can handle HTML, CSS and JS -- deterministically. Claude Code clicks photos, Benzi resolves winners of CSS rules. The CodeIndex and the Markup Engine are fairly well tested, and if something isn't working, the model is made aware of it first. On the benchmarks side, 78.2% SWE-bench Verified for <10¢ a fix (using V4flash). This score is noteable because while the rest of the industry is leaning plugin-heavy and pouring millions of dollars into increasing context window sizes, Benzi's approach might prove to be economically more valuable while improving the model's code writing/comprehenion abilities. Thanks for reading! please let me know what you think.

Benzi

A compiler-backed AI coding agent

A compiler-backed AI coding agent