MultiPL-E: C++

The C++ subset of MultiPL-E: HumanEval and MBPP function-completion problems translated into C++ and scored with pass@1.

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Categorycoding
Subcategorymultilingual code generation
Page statusactive
Metricpass@1
Directionhigher_is_better
Unit%
Dataset licenceMIT
PublisherNortheastern University Programming Research Lab (nuprl)

What it measures

This subset translates the HumanEval and MBPP prompts into C++ by rewriting each problem's function signature, docstring and tests with C++ syntax and typing, then asks the model to complete the function body in C++. The underlying algorithmic problem is unchanged from the Python original; only the surface language differs.

Task format

Function completion in C++: given a translated signature, docstring and (for HumanEval-derived items) doctests, the model generates a function body, which is compiled or interpreted with a real C++ toolchain inside a container and checked against translated unit tests.

Models reporting this benchmark

These figures come from the model cards, which carry one collection date per card and no per-score attribution. They are shown as reported, not as verified evidence.
ModelProviderScoreCard as of
Claude Opus 4Anthropic88.52026-04
Claude Opus 4.6Anthropic88.52026-04
Claude Sonnet 4Anthropic85.82026-04
Claude Sonnet 4.5Anthropic85.82026-04
Claude Sonnet 4.5 (latest)Anthropic85.82026-04
GPT-4.1OpenAI85.12026-04
Gemini 2.5 ProGoogle DeepMind84.22026-04
DeepSeek R1DeepSeek83.52026-04
DeepSeek R1 0528DeepSeek83.52026-04
DeepSeek R1 0528 NVFP4 v2NVIDIA83.52026-04
DeepSeek ReasonerDeepSeek83.52026-04
GPT-4oOpenAI82.52026-04
GPT-4o (2024-05-13)OpenAI82.52026-04
GPT-4o (2024-08-06)OpenAI82.52026-04
GPT-4o (2024-11-20)OpenAI82.52026-04
GPT-4o miniOpenAI82.52026-04
Qwen2.5 Coder 32B InstructAlibaba / Qwen Team79.82026-04
Qwen2.5 Coder 32B Instruct AWQAlibaba / Qwen Team79.82026-04
Gemma 4 31BGoogle DeepMind76.52026-04
gemma 4 31B itGoogle DeepMind76.52026-04
gemma 4 31B it GGUFUnsloth76.52026-04
Gemma 4 31B IT NVFP4NVIDIA76.52026-04
Mistral Large (latest)Mistral AI75.52026-04
Mistral Large 2.1Mistral AI75.52026-04
Mistral Large 3Mistral AI75.52026-04
Codestral (latest)Mistral AI75.22026-04
Gemma 4 26BGoogle DeepMind74.82026-04
Qwen2.5 Coder 14B InstructAlibaba / Qwen Team73.22026-04
Llama 3.3 70B Instruct NVFP4NVIDIA72.82026-04
Llama-3.3-70B-InstructMeta72.82026-04
phi 4Microsoft72.12026-04
Phi 4 mini instructMicrosoft72.12026-04
Llama 3.1 70BMeta70.52026-04
Llama 3.1 70B InstructMeta70.52026-04
Qwen2.5 Coder 7B InstructAlibaba / Qwen Team66.52026-04
Qwen2.5 Coder 7B Instruct GPTQ Int4Alibaba / Qwen Team66.52026-04
CodeLlama 34B Instruct hfMeta58.22026-04

Data

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