GCP-Python Playground — Meridian Type Inference

⟨T⟩

GCP Python Type Inference

Write Python functions in library.py — no type hints needed.
In usage_context.py, call those functions with concrete arguments.
GCP propagates types backward from call sites.
Press ⟨T⟩ Infer to see the results.

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Demand-Driven
Types flow backward from call sites to parameter declarations

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Zero Annotations
No need to write def f(x: int) — GCP figures it out

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mypyc Speedup
Annotated code compiles to native C extensions for 2–8× faster execution

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Run ⟨T⟩ Infer to see the GCP-annotated source

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Run Benchmark on the current editors

Live: CPython · mypyc (bare) · Meridian

For pre-recorded suite numbers, open the 📊 Recorded tab — no compile needed.

Pre-recorded Meridian product eval — open a suite to see numbers without running Benchmark.

Function	Native	mypyc bare	Meridian	speedup×
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Meridian-Python Playground