In GSoC 2026

Typelevel

Typelevel is an ecosystem of projects and a community of people united to foster an inclusive, welcoming, and safe environment around functional programming in Scala. We work together to develop projects that apply functional programming to challenging problems relevant in industry. Our community culture embraces curiosity and mentoring and we don't shy away from experimenting with new and exciting ideas. Most of all, we love to make programming joyful and social.

Ideas list Website

Contributors in 2026

+2 from 2025

Projects since 2016

3 a cycle on average

Cycles

2 of 11

2-cycle streak

Rank in 2026

#91

of 183, 0.4% of slots

Mentors

for 2 projects in 2025

Contributors per cycle

Accepted projects each year, against the median organization that year

View as table

Typelevel contributors per cycle
	Typelevel	Median organization
2016	0	4
2017	0	4
2018	0	3
2019	0	4
2020	0	4
2021	0	4
2022	0	3
2023	0	4
2024	0	4
2025	2	5
2026	4	4

Stack and topics

Each one has its own page of organizations and trends

Web Functional programming Cloud AI/ML Cats

Quick answers

Is Typelevel in GSoC 2026?: Yes, with 4 contributors.
How long has it taken part?: 2 of 11 cycles since 2016, first in 2025, with a 2-cycle streak running.
How many contributors does it usually take?: 3 a cycle on average, 6 in total. Its largest cycle was 2026, with 4.
What does it build with?: Linux, Node.js, JVM, Scala, Wasm.

Accepted projects

4 projects in 2026 · All 6 projects since 2016

Compile-time Specialization for Scala 3 via Inline Traits
James You
Specialization is a compiler transformation that optimizes generic program code such that code using primitive types can execute without significant...
Project
A Faster Immutable List
Jennifer Payne
The goal of this project is to create a more efficient immutable list in Scala. In order to do this, we intend to use block-based arrays, to improve...
Project
A Faster Immutable List Datatype
L Denney
The goal of this project is to explore implementing a list-like datatype with enhanced performance. Immutable linked lists are a core datatype in...
Project
Cats Effect & FS2 for Wasm/WASI
Mariusz Jakoniuk
The recent efforts of the `scala-wasm` project have made it possible for Scala to use the WebAssembly Component Model binary format as a compilation...
Project