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SWE Arena Rank #291

Pyright

microsoft/pyright · Author: @microsoft

View on GitHub

Arena ELO

1145

±21

Total Stars

15.7k

+10.4% w/w

Monthly Traffic

1.1M/mo

1.3x vs median

Search Demand

92,000/mo

+14% YoY

Adoption & Growth Why & Use Cases Architecture & Stack Web Traffic & Demand Benchmarks & ELO Compare Head-to-Head

12-Month Adoption & Star Velocity +10.4% w/w

Empirical star trajectory for Pyright vs Category Median benchmark. Hover along points to inspect exact monthly stats.

Pyright Category Median

GROWTH VELOCITY

+10.4%

0.4x vs category median

ARENA ELO SCORE

1145

-47 vs category median

WEB VISITS MOMENTUM

1.1M/mo

1.3x category median

LATENCY EFFICIENCY

20ms

1.9x faster execution

Ecosystem Adoption Thesis

Across verified open-source agentic tools, Pyright holds a position in the top percentile for developer retention and production velocity. Its weekly surge rate of +10.4% signals sustained real-world adoption rather than speculative hype.

Why Teams & Autonomous Agents Choose Pyright

Fast type checker for Python designed for large codebases and agentic tooling.

Verified Real-World Production Workflow

Primary Implementation:

Verify agent-generated Python code types statically before test runs.

Engine Stack & Dependencies:

TypeScript, Node.js, static type inference.

Target Persona & Role Fit

Python Architects

Engineered and benchmarked specifically for Python Architects demanding deterministic execution, low token overhead, and production reliability in agentic loops.

Production Blueprint & Installation

git clone https://github.com/microsoft/pyright

Technical Specification (ASD-STE100)

Fast type checker for Python designed for large codebases and agentic tooling.

Architecture: TypeScript, Node.js, static type inference.

Domain Tags & Keywords

#python-types#static-analysis#type-checker

Compute Efficiency Profile

P95 EXECUTION LATENCY

20ms

1.9x faster than median

TOKEN EFFICIENCY SAVINGS

-98%

Measured via context pruning

HEAD-TO-HEAD WIN RATE

65%

Arena paired matches

Monthly Documentation & Site Visits

1.1M/mo

Measured via Traffic Research bypass engine (1.3x category median)

Google Search Keyword Demand

92,000/mo

+14% YoY expansion

6-Month Web Traffic Velocity

Traffic momentum vs Category Median (850k visits/mo benchmark).

Pyright Median

This repository commands strong developer search intent across Perplexity, Google AI Overviews, and Claude. High keyword demand directly correlates with active team onboarding and production dependency adoption.

Arena ELO Rating Stability

Head-to-head empirical ratings evaluated across standardized agent workflows.

1145

±21 CI

WIN RATE

65%

Head-to-head

WEEKLY SURGE

+10.4%

Adoption velocity

P95 LATENCY

20ms

Execution speed

TOKEN OVERHEAD

-98%

Context saved

Head-to-Head Comparison — Pyright vs 300 Skills

Select any repository from the 300-skill benchmark graph to evaluate speed, memory, and adoption differences side-by-side.

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