BIG-bench

Benchmark for probing large language models and extrapolating their future capabilities

DecliningOpen SourceLow lock-in

Pricing

Free tier

Flat rate

Adoption

Cooling

License

Open Source

Data freshness

Aging · Jun 8, 2026

Overview

What is BIG-bench?

BIG-bench is a collaborative benchmark designed to evaluate the performance of large language models across various tasks, providing insights into their current abilities and potential future advancements.

Key differentiator

BIG-bench stands out as an open, collaborative benchmark specifically designed for evaluating large language models, offering a comprehensive suite of tasks to assess model capabilities and future potential.

Capability profile

Capability Radar

Ease of StartEcosystemValueMaturityFlexibilityScale Ready

Honest assessment

Strengths & Weaknesses

↑ Strengths

Collaborative benchmark for large language modelsmedium

Evaluation across diverse tasks to assess model capabilitiesmedium

Open-source and community-drivenmedium

↓ Weaknesses

Steep learning curve for non-Python developershigh

API requires Python-specific patterns, TypeScript SDK is community-maintained

Frequent breaking changes between versionsmedium

v0.1 to v0.2 migration required rewriting chain definitions

Limited documentation for advanced usage scenarioshigh

Core documentation focuses on basic setup and common tasks, lacks in-depth guides for complex configurations

Performance bottlenecks with very large datasetsmedium

Benchmarking large language models can lead to high memory usage and slow processing times

Fit analysis

Who is it for?

✓ Best for

Academic researchers looking to benchmark and compare the capabilities of large language models

Developers who need a comprehensive set of tasks to evaluate model performance across various domains

✕ Not a fit for

Teams needing real-time performance metrics for production systems

Projects that require proprietary or closed-source benchmarks

Cost structure

Pricing

Free Tier

Available

Open source — free to use

Starts at

$0

Model

Flat rate

Enterprise

None

Performance benchmarks

How Fast Is It?

Ecosystem

Relationships

Next step

Get Started with BIG-bench

Step-by-step setup guide with code examples and common gotchas.

View Setup Guide →