CANONICAL BENCHMARK • EVALUATION SPECIFICATION

LiveCodeBench

Contamination-free competitive programming problems from LeetCode, Codeforces, and AtCoder updated continuously.

What LiveCodeBench Actually Measures

Algorithmic problem solving, complex mathematical reasoning, and edge-case handling on brand-new competitive programming problems published after model training cutoff dates.

⚠ Known Boundaries & Harness Sensitivity

Measures competitive programming and algorithmic puzzles rather than real-world software maintenance or multi-file application development.

Complete Verified Leaderboard

Fully server-side rendered table with verified primary source attributions and direct repository links.

ⓘ

No verified results loaded yet — ingestion pending

We only publish benchmark scores with verified primary source provenance and public methodology. Evaluations for this benchmark are currently in queue.

Sources & Open Data Licences CC-BY / Open Source

In compliance with upstream dataset licenses, all evaluated telemetry rows are credited to their primary sources:

What This Benchmark Does Not Measure

Does not measure real-world repo navigation or git workflows.

How to Reproduce This Evaluation

All evaluations published by Vibecoder Journal follow publicly documented harness specifications. You can execute this test suite against any local or API model: 

# Standardized containerized evaluation execution
git clone https://livecodebench.github.io/ && cd evaluation
docker build -t vcj-harness .
docker run --rm -v $(pwd)/results:/results vcj-harness --benchmark livecodebench
Sources & Open Data Licences CC-BY / Open Source

In compliance with upstream dataset licenses, all evaluated telemetry rows are credited to their primary sources:

Abdullah Zulfiqar
Abdullah Zulfiqar Founder & Technical Editor

Abdullah Zulfiqar is the founder and editor of Vibe Coder Journal, an independent publication that benchmarks AI coding tools. He verifies every figure against primary sources — official documentation, real release files and live leaderboards — rather than repeating secondary reporting. His work has corrected widely-circulated errors in Terminal-Bench scores, Ollama's official uninstall instructions and Anthropic's documented install commands. Vibe Coder Journal accepts no sponsorships or affiliate commissions.

All Benchmarks → LinkedIn Profile →

Related AI Coding Benchmarks

benchmark 3 min read

Aider Polyglot Benchmark

Multi-language code editing benchmark evaluating diff formatting and test suite pass rates across Python, JS, Go, Rust, C++, and Java.

By Abdullah Zulfiqar • Sep 4, 2026
benchmark 2 min read

Terminal-Bench 2.0

Autonomous CLI agent tasks measuring terminal command generation, execution, and multi-step system navigation.

By Abdullah Zulfiqar • Sep 4, 2026