Boris Cherny
Head of Claude Code
Anthropic
Code with Claude Tokyo: Extended — June 11, 2026
11 June 2026
Tokyo
To meet demand, a second event just for independent developers and early-stage founders: founder stories, builder deep-dives, and laptops-open workshops from our Applied AI team. Code with Claude is where you hear what's new. Extended is where you see it in the wild.
Founder stage
When anyone can build, the founder's edge is knowing what to build and sticking with it. Sit in with founders and technical leaders from startups built on Claude as they walk through the bets they made, the road from prototype to first revenue, and the judgement calls they’ve made.
Builder stage
You don't need a CS degree or an engineering team to ship real software anymore. You need a problem you understand and the will to solve it. We’ll see working demos, real code, the techniques behind each.
Workshops
Join the same hands-on sessions Anthropic uses to train its own technical staff, adapted for you. Ship your first managed agent, give it memory, write evals that move the score, compose multi-agent systems, then put it all to the test in a live agent battle.
Demos and office hours run all day. Drop by for a demo between sessions. Sign up in advance for office hours. All times in Japan Standard Time (JST).
A note on language. Sessions run primarily in English with some in Japanese (marked on the agenda), and live simultaneous interpretation is available in both directions throughout the event. Office hours are held in English.
08:30 – 09:30
Check-in and breakfast
09:30 – 09:45
morning sessions
10:00 – 10:30
Building AI-native across industries with NTT, Mizuho and Mercari
·
(
Founder stage
)
·
Carlos Donderis
Mercari
Takashi Ebihara
NTT Inc
Tatsuto Fujii
Mizuho Financial Group, Inc.
What happens when domain experts can finally build
·
(
Builder stage
)
·
Jason Tangen
University of Queensland
10:00 – 10:45
10:45 – 11:15
From Claude prototype to production: How Myrealtrip builds and ships AI workflows
·
(
Founder stage
)
·
Wonjin Hur
Myrealtrip
Code for loved ones: Building customized software to bypass language barriers with my girlfriend
·
(
Builder stage
)
·
Siyuan Yan (Matt)
Kyushu University
11:00 – 11:45
11:30 – 12:00
The 1% problem: How domain expertise + Claude let a 2-person team hit #1 on a global classification benchmark
·
(
Founder stage
)
·
Gahee Seo
Federation
How to integrate Claude into your daily life
·
(
Builder stage
// presented in Japanese
)
·
Yuta Hayashi
Determinant, Inc.
12:00 – 12:45
11:45 – 13:30
Lunch
afternoon sessions
13:00 – 13:45
13:15 – 13:45
The last mile is the spec
·
(
Founder stage
// presented in Japanese
)
·
Hitoshi Tsuyuki
Tsukumo Labs Inc.
Sumiki Hori
Tsukumo Labs Inc.
Same model, three different worlds: Japan, India, Australia
·
(
Builder stage
)
·
Jason Bigman
Anthropic
Rye Smith
Spruik Co.
Sumeet Doshi
HaemoLink
Yuta Hayashi
Determinant, Inc.
14:00 – 14:30
Code less, query more with sub-agents and data
·
(
Founder stage
// presented in Japanese
)
·
Kenta Yamamoto
primeNumber Inc.
How I built a legal platform for 280 million people at the Claude Code Hackathon
·
(
Builder stage
)
·
Ilham Firdausi Putra
Pasal.id
14:00 – 14:45
Tool, skill, or subagent? Decomposing an agent that outgrew its prompt
·
(
Workshop
)
·
Karan Sampath
Anthropic
14:45 – 15:15
Manager 11: How I finally shipped my dream football management game with Claude
·
(
Founder stage
)
·
Rye Smith
Spruik Co.
15:00 – 15:45
15:30 – 16:00
Evening
15:45 – 18:00
Closing reception
Angela Jiang
Head of Product
Claude Platform, Anthropic
Katelyn Lesse
Claude Platform, Anthropic
Cat Wu
Head of Product
Claude Code, Anthropic
10 June
Anthropic's developer conference. Live demos of new capabilities, hands-on workshops, and conversations with the research and product teams building Claude — where we share what's shipping and what's next.