Repository-Level Debugging, Code Synthesis & Refactoring

Software Engineering & Agentic Coding

Modern code benchmarks evaluate agentic code repair within realistic multi-file GitHub repositories, terminal command execution, and deterministic unit-test pass rates.

Human Baseline78.4% (Senior SWE Baseline)
Contamination StatusCritical on HumanEval/MBPP; Controlled on SWE-bench Verified
Top Frontier ModelClaude Fable 5 (86.0%) & GPT-5.6 Sol (83.9%)

Forensic Analysis & Methodology

Why Classic Benchmarks Failed

HumanEval and MBPP consist of trivial single-function Python prompts that exist in hundreds of thousands of public training files, saturating over 90% and failing to predict real-world developer utility.

The TrustTheBench & LiveBench Approach

SWE-bench Verified and LiveCodeBench evaluate real pull requests and newly released LeetCode/Codeforces problems with hidden test suites.

Verified Category Leaderboard

Ranked strictly by verified Software Engineering & Agentic Coding performance.

RankModelResearch LabAccess TypeCategory ScoreSpeedPricing / 1M
#1Claude Fable 5.1 (Hybrid Reasoning)Anthropicproprietary86.4%54 tok/s$5.00 in
#2Claude Fable 5Anthropicproprietary86.0%45 tok/s$10.00 in
#3GPT-6 Astra (max)OpenAIproprietary85.9%62 tok/s$4.50 in
#4DeepSeek V4.1 FlashDeepSeekproprietary85.1%96 tok/s$0.18 in
#5GPT-5OpenAIproprietary84.5%85 tok/s$2.50 in
#6GPT-5.6 SolOpenAIproprietary84.1%62 tok/s$5.00 in
#7Grok 4xAIproprietary84.0%75 tok/s$5.00 in
#8o3OpenAIproprietary84.0%68 tok/s$4.00 in
#9Kimi K3Moonshot AIopen-weight83.5%58 tok/s$2.80 in
#10Claude Sonnet 5Anthropicproprietary83.2%95 tok/s$3.00 in
#11Claude 3.7 SonnetAnthropicproprietary83.2%72 tok/s$3.00 in
#12Grok 3xAIproprietary82.5%65 tok/s$3.00 in
#13GPT-5.5 ThinkingOpenAIproprietary82.1%70 tok/s$3.00 in
#14Gemini 2.5 ProGoogle DeepMindproprietary82.0%85 tok/s$1.25 in
#15Gemini 3 ProGoogle DeepMindproprietary81.5%80 tok/s$2.50 in

Deployment Recommendations

🏆 Best Overall Frontier

Claude Fable 5 (86.0%) & GPT-5.6 Sol (83.9%)

Maximum reasoning depth and lowest error rate on difficult boundary problems.

🔓 Best Open-Weight

Kimi K3 (81.4%) & DeepSeek V4-Pro (81.0%)

Host locally or via cost-effective cloud providers with full data privacy.

⚡ Best Value & Speed

DeepSeek V4-Flash ($0.14/1M) & Qwen 2.5 Coder 32B

Optimal price-to-performance ratio for high-volume automated agent pipelines.

Relevant Benchmark References

SWE-bench Verified

Metric: Resolved %View Methodology →

LiveCodeBench

Metric: Pass@1 %View Methodology →

LiveBench Coding

Metric: Auto-Test Pass %View Methodology →