2026-09-27Update
Added Claude Opus 5.5, GPT-6 Sol & Luna, Grok 4.7, and DeepSeek-V4.1-Flash
Added Claude Opus 5.5, GPT-6 Sol & Luna, Grok 4.7, and DeepSeek-V4.1-Flash to the cost estimator.
News & Updates
Stay up to date with Zenn blog articles, new iOS app releases, and feature updates.
2026-09-08Update
Added OpenAI's Frontier Flagship "GPT-6 Astra" to AI Model & API Cost Estimator
Added OpenAI's frontier flagship model "GPT-6 Astra" to the cost estimator. Compare specs, estimate API costs, and view its dedicated model page.
2026-09-03Update
Added Gemini 3.8 Flash and Claude Fable 5.1 to AI Model & API Cost Estimator
Added Google's Gemini 3.8 Flash and Anthropic's Claude Fable 5.1 to the cost estimator. Compare specs, estimate API costs, and view their dedicated model pages.
2026-08-29Update
AI Model & Cost Estimator: Added Gemini 3.7 Flash & Grok 4.6, Off-Peak Pricing Support & Dedicated Model Detail Pages!
Added Gemini 3.7 Flash, Grok 4.6, off-peak pricing calculation support, and dedicated individual pages for all AI models.
2026-08-28Update
Haiku AI Scoring ver3.1 Released!
Enhanced scoring accuracy and updated "Theme of the Day" for late summer to early autumn. Also includes an announcement regarding a known issue with saving haiku.
2026-08-07Update
Added GPT-5.6, Claude Opus 5, Gemini 3.6, etc. to AI Model & API cost estimator
Added the latest models such as GPT-5.6, Claude Opus 5, and Gemini 3.6 Flash to the cost estimator, and supported the new GPT-5.6 cache pricing model.
2026-08-07Update
Simple Currency Household Account ver2.1 Released!
Fixed a crash issue when deleting categories and added foreign currency display support to the calendar view.
2026-07-05Update
Added Claude Sonnet 5 to AI Model & API cost estimator
Added the latest Claude Sonnet 5 to the cost estimator page and adjusted cache settings.
2026-06-27Update
AI Note+ ver2.1 Released!
We have added multilingual support, fixed video loading bugs, and improved voice input quality. Enjoy a smoother and more powerful AI Note+!
2026-06-19Release
Offline Chat Bot "Private AI" has been released!
"Private AI", a fully offline local LLM chat app that runs entirely on your device, has been released. Chat with AI securely without worrying about data leaks!
2026-06-18Info
Started a new blog on note!
Started a new blog on note on June 18th. I will loosely post articles for general readers, introduce apps, and share daily life and hobbies.
2026-06-18Update
Talk to Historical AI Greats ver2.0 Released!
Historical greats will now call you by your username, and their response accuracy has been improved. We also fixed minor bugs for a smoother chat experience!
2026-06-17Update
Prime Rush: Math Time Attack ver2.0 Released!
Adjusted the leaderboard to display the top 100 players and resolved minor bugs. Challenge your limits and aim for a spot in the top 100!
2026-06-16Update
Currency Converter Calculator ver1.5 Released!
Minor bug fixes and performance improvements. Enjoy a smoother experience for your daily currency conversions!
2026-06-15Update
Simple Currency Household Account ver2.0 Released!
Resolved notification issues and fixed a bug where large amounts caused unexpected behavior. We updated the app to improve overall stability!
2026-06-15Update
Draw a Circle ver2.0 Released!
Introducing the new "Monthly Ranking" feature! Compete in the freshly reset monthly leaderboards and aim for the global #1 spot every month!
2026-06-15Update
Airport Code Memorization ver1.3 Released!
Minor bug fixes and performance improvements. Enjoy a smoother learning experience as you master 3-letter and 4-letter airport codes!
2026-06-12Update
Tanka AI Scoring ver3.0 Released!
Improved scoring accuracy and speed, updated "Theme of the Day" for early summer, and optimized share text. Share your beautiful tanka on social media!
2026-06-12Update
Senryu AI Scoring ver3.0 Released!
Improved scoring accuracy and speed, updated "Theme of the Day" for early summer, and optimized share text. Share your masterpieces on social media!
2026-06-12Update
Added Claude Fable 5 to AI Model & API cost estimator
Added the latest Claude Fable 5 to the cost estimator page.
2026-06-11Update
Haiku AI Scoring ver3.0 Released!
Improved scoring accuracy and speed, updated "Theme of the Day" for early summer, and optimized share text. Feel free to share your scores on social media!
2026-06-09Tech Blog
[WWDC26 News] Apple Foundation Models Gen 3 (AFM 3) Revealed
Discover the groundbreaking memory management of Apple's AFM 3 announced at WWDC26. How does a 20B parameter model run efficiently on a smartphone?
2026-06-07Tech Blog
Posted 'Fixing Blurry Text on External Monitors with BetterDisplay' to Zenn!
Learn how to resolve blurry text on external monitors and enable HiDPI using BetterDisplay.
2026-05-31Update
Added new models to AI Model & API cost estimator (Claude Opus 4.8, etc.)
Added Claude Opus 4.8, Gemini 3.5 Flash, DeepSeek-V4-Pro/Flash and adjusted some benchmarks.
2026-05-18Tech Blog
Published Zenn article: "Does OpenAI API's reasoning effort really work? π§ Validated with gpt-5.5"!
An in-depth validation report examining the newly released OpenAI API reasoning effort parameter.
2026-05-08Tech Blog
Published Zenn article: "Trials and Tribulations of Localizing Claude Code on M1 Max 32GB Mac"!
A comprehensive chronicle of setting up and optimizing Claude Code locally on an Apple Silicon M1 Max machine.
2026-05-08Info
Official X (Twitter) account is now live!
Launched the official X (Twitter) account to share iOS app updates and AI development thoughts!