MultiPL-E: Swift

The Swift subset of MultiPL-E: HumanEval and MBPP function-completion problems translated into Swift 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 Swift by rewriting each problem's function signature, docstring and tests with Swift syntax and typing, then asks the model to complete the function body in Swift. The underlying algorithmic problem is unchanged from the Python original; only the surface language differs.

Task format

Function completion in Swift: 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 Swift 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
GPT-5.1OpenAI77.82026-04
GPT-5.1 ChatOpenAI77.82026-04
GPT-5.1 CodexOpenAI77.82026-04
GPT-5.1 Codex MaxOpenAI77.82026-04
GPT-5.1 Codex miniOpenAI77.82026-04
Claude Opus 4Anthropic76.82026-04
Claude Opus 4.6Anthropic76.82026-04
GPT-5OpenAI76.52026-04
GPT-5 Chat (latest)OpenAI76.52026-04
GPT-5 MiniOpenAI76.52026-04
GPT-5 NanoOpenAI76.52026-04
GPT-5 ProOpenAI76.52026-04
GPT-5-CodexOpenAI76.52026-04
GPT-5.2OpenAI76.52026-04
GPT-5.2 ChatOpenAI76.52026-04
GPT-5.2 CodexOpenAI76.52026-04
GPT-5.2 ProOpenAI76.52026-04
GPT-5.3 Chat (latest)OpenAI76.52026-04
GPT-5.3 CodexOpenAI76.52026-04
GPT-5.3 Codex SparkOpenAI76.52026-04
GPT-5.4OpenAI76.52026-04
GPT-5.4 miniOpenAI76.52026-04
GPT-5.4 nanoOpenAI76.52026-04
GPT-5.4 ProOpenAI76.52026-04
o3OpenAI75.82026-04
Claude Opus 4.5Anthropic75.52026-04
Claude Opus 4.5 (latest)Anthropic75.52026-04
Claude Sonnet 4.6Anthropic74.82026-04
Claude Opus 4.1Anthropic74.52026-04
Claude Opus 4.1 (latest)Anthropic74.52026-04
Qwen3-Coder 480B-A35B InstructAlibaba / Qwen Team74.22026-04
Claude Sonnet 4Anthropic73.52026-04
Claude Sonnet 4.5Anthropic73.52026-04
Claude Sonnet 4.5 (latest)Anthropic73.52026-04
Grok 4xAI72.82026-04
Grok 4 FastxAI72.82026-04
Grok 4 Fast (Non-Reasoning)xAI72.82026-04
Grok 4.1 FastxAI72.82026-04
Grok 4.1 Fast (Non-Reasoning)xAI72.82026-04
Grok 4.20 (Non-Reasoning)xAI72.82026-04
Grok 4.20 (Reasoning)xAI72.82026-04
Grok 4.20 Multi-AgentxAI72.82026-04
Gemini 2.5 ProGoogle DeepMind72.52026-04
Claude Opus 4 (latest)Anthropic72.12026-04
GPT-4.1OpenAI71.82026-04
o4-miniOpenAI71.52026-04
o4-mini-deep-researchOpenAI71.52026-04
Qwen3 235B-A22BAlibaba / Qwen Team70.22026-04
Claude Sonnet 4 (latest)Anthropic70.12026-04
DeepSeek V3.2 ExpDeepSeek69.82026-04
DeepSeek V3.2DeepSeek68.52026-04
Claude Sonnet 3.7Anthropic68.22026-04
GPT-4oOpenAI68.22026-04
GPT-4o (2024-05-13)OpenAI68.22026-04
GPT-4o (2024-08-06)OpenAI68.22026-04
GPT-4o (2024-11-20)OpenAI68.22026-04
o3-miniOpenAI68.22026-04
DeepSeek R1 0528DeepSeek67.52026-04
DeepSeek R1 0528 NVFP4 v2NVIDIA67.52026-04
Claude Sonnet 3.5Anthropic66.52026-04
Claude Sonnet 3.5 v2Anthropic66.52026-04
GPT-4 TurboOpenAI66.52026-04
Claude Haiku 4.5Anthropic65.52026-04
Claude Haiku 4.5 (latest)Anthropic65.52026-04
DeepSeek R1DeepSeek65.22026-04
DeepSeek ReasonerDeepSeek65.22026-04
DeepSeek V3.1DeepSeek64.82026-04
Gemini 2.5 FlashGoogle DeepMind64.82026-04
Gemini 2.5 Flash ImageGoogle DeepMind64.82026-04
Gemini 2.5 Flash Image (Preview)Google DeepMind64.82026-04
Gemini 2.5 Flash LiteGoogle DeepMind64.82026-04
Gemini 2.5 Flash Lite Preview 06-17Google DeepMind64.82026-04
Gemini 2.5 Flash Lite Preview 09-25Google DeepMind64.82026-04
Gemini 2.5 Flash Preview 04-17Google DeepMind64.82026-04
Gemini 2.5 Flash Preview 05-20Google DeepMind64.82026-04
Gemini 2.5 Flash Preview 09-25Google DeepMind64.82026-04
Gemini 2.5 Flash Preview TTSGoogle DeepMind64.82026-04
Grok 3xAI64.52026-04
Grok 3 FastxAI64.52026-04
Grok 3 Fast LatestxAI64.52026-04
Grok 3 LatestxAI64.52026-04
Grok 3 MinixAI64.52026-04
Grok 3 Mini FastxAI64.52026-04
Grok 3 Mini Fast LatestxAI64.52026-04
Grok 3 Mini LatestxAI64.52026-04
Qwen3 32BAlibaba / Qwen Team63.82026-04
Qwen3 32B AWQAlibaba / Qwen Team63.82026-04
Qwen3 32B NVFP4NVIDIA63.82026-04
Mistral Large (latest)Mistral AI63.52026-04
Mistral Large 2.1Mistral AI63.52026-04
Mistral Large 3Mistral AI63.52026-04
DeepSeek V3 0324DeepSeek62.52026-04
GPT-4OpenAI61.52026-04
GPT-4.1 miniOpenAI61.52026-04
GPT-4.1 nanoOpenAI61.52026-04
Claude Opus 3Anthropic60.52026-04
Qwen2.5 Coder 32B InstructAlibaba / Qwen Team60.52026-04
Qwen2.5 Coder 32B Instruct AWQAlibaba / Qwen Team60.52026-04
DeepSeek ChatDeepSeek60.22026-04
DeepSeek V3DeepSeek60.22026-04
Llama 4 Maverick 17B 128E InstructMeta59.82026-04
Llama-4-Maverick-17B-128E-Instruct-FP8Meta59.82026-04
Qwen2.5 72B InstructAlibaba / Qwen Team58.82026-04
GPT-4o miniOpenAI58.52026-04
Gemma 4 31BGoogle DeepMind57.82026-04
gemma 4 31B itGoogle DeepMind57.82026-04
gemma 4 31B it GGUFUnsloth57.82026-04
Gemma 4 31B IT NVFP4NVIDIA57.82026-04
Codestral (latest)Mistral AI56.82026-04
Mistral Medium (latest)Mistral AI56.82026-04
Mistral Medium 3Mistral AI56.82026-04
Mistral Medium 3.1Mistral AI56.82026-04
Claude Haiku 3.5Anthropic56.52026-04
Claude Haiku 3.5 (latest)Anthropic56.52026-04
Llama 4 Scout 17B 16EMeta56.22026-04
Llama 4 Scout 17B 16E InstructMeta56.22026-04
Llama-4-Scout-17B-16E-Instruct-FP8Meta56.22026-04
phi 4Microsoft55.82026-04
Gemma 4 26BGoogle DeepMind55.52026-04
Llama 3.3 70B Instruct NVFP4NVIDIA55.52026-04
Llama-3.3-70B-InstructMeta55.52026-04
Llama 3.1 70BMeta53.22026-04
Llama 3.1 70B InstructMeta53.22026-04
Qwen2.5 Coder 14B InstructAlibaba / Qwen Team52.12026-04
Mistral Small (latest)Mistral AI48.82026-04
Mistral Small 24B Instruct 2501Mistral AI48.82026-04
Mistral Small 3.1 24B Instruct 2503Mistral AI48.82026-04
Mistral Small 3.2Mistral AI48.82026-04
Mistral Small 3.2 24B Instruct 2506Mistral AI48.82026-04
Mistral Small 4Mistral AI48.82026-04
Mistral Small 4 119B 2603Mistral AI48.82026-04
Phi 4 mini instructMicrosoft44.22026-04
Qwen2.5 Coder 7B InstructAlibaba / Qwen Team44.22026-04
Qwen2.5 Coder 7B Instruct GPTQ Int4Alibaba / Qwen Team44.22026-04
CodeLlama 34B Instruct hfMeta38.22026-04

Data

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