Everything that has changed in the Sakana Fugu ecosystem, newest first — sourced exclusively from Sakana’s dated official announcements and the release notes in its public repository, each entry linked to its source. We check the official channels weekly and update this page when something changes; nothing appears here without a verifiable source. Last updated: August 19, 2026.
Product and platform updates
August 13, 2026 — Fugu comes to Sakana Chat
Sakana Chat adds Fugu for logged-in users and refreshes Sakana Namazu to a new generation; the chat also gains sandboxed Python code execution with an artifact preview panel (HTML, documents, slides — downloadable), plus image and document attachments. Sakana’s announcement invites users to “Try Sakana Chat for Free.” Source · our guide
August 10, 2026 — the conductor goes modular
Sakana publishes a verification showing Fugu’s orchestrator (“conductor”) model re-trained on an open Gemma-family base (Apache 2.0) with performance and cost comparable to production — and reveals the production conductor had been trained on a Qwen-family base. Stated direction: conductor choices for sovereignty requirements, including future domestically developed bases. Source · research context
August 3, 2026 — the Namazu API opens
The Japanese-specialized model graduates from Sakana Chat to a standalone, OpenAI-compatible API with built-in web search and code execution, at $0.95/$4.00 per million tokens. Source · our complete guide
July 24, 2026 — Fugu Ultra v1.1 and the Claude Code interface
Sakana announces the current Ultra version alongside official Claude Code support. Ultra v1.1 is the only model in the family where the max reasoning-effort level is distinct rather than an alias for xhigh. Source · install guide
July 21, 2026 — Fugu Cyber introduced
The security-specialized orchestration model launches with reported state-of-the-art results on real-world security benchmarks; access-gated, pay-as-you-go only. Source · our guide
July 16, 2026 — NVIDIA partnership
Sakana and NVIDIA announce work to bring NVIDIA’s open Nemotron model family into Fugu’s orchestration pool. Source
July 6, 2026 — Sakana Translate
Sakana Chat gains translation, proofreading, and Q&A features. Source
June 22, 2026 — Sakana Fugu launches
“One Model to Command Them All”: the multi-agent orchestration system ships as an API and coding-agent product, with a technical report. Source · our pillar guide
June 15, 2026 — Sakana Marlin launches as the company’s first commercial product: an autonomous strategy-research agent. Source · our guide
Coding-agent integration updates
From the release notes in Sakana’s public Fugu repository (notes directory; the notes are unnumbered by date — order below follows the repo’s own sequence, retrieved August 19, 2026):
- Codex pinned to 0.147.0 (current). A large upstream span; Sakana notes nothing changes in how Fugu works, and the deployed config still pins remote plugins off (
remote_plugin = false). - Codex pinned to 0.145.0. Sizable upstream release; Fugu behavior unchanged.
- Fugu Ultra becomes version-pinned in the /model picker: explicit
fugu-ultra-v1.1andfugu-ultra-v1.0entries replace the unversioned listing, so a new Ultra release never changes your model silently. - Codex pinned to 0.144.1 (from 0.142.5), picking up upstream installer-reliability fixes.
- Install failure fixed: the pinned Codex is now installed with the installer published alongside that release, fixing a fresh-install failure caused by an upstream installer change.
- Version switches back up the session index (state/memories/goals) into the timestamped backup, with a warning before switching — because
codex resumelists sessions per version. - API key moves to
~/.codex/.env(mode 0600), loaded by Codex automatically — no more shell-profile edits.
Full context for these: the Codex install guide and troubleshooting.
Watching for changes yourself
Primary sources, in the order changes tend to appear: the Sakana blog for products and pricing-relevant announcements; the repository’s notes directory for coding-agent changes; and the console’s pricing and get-started pages for rate or API changes. Pricing changes especially: our pricing guide and calculator carry “as of” dates for exactly this reason — check them against the official pages before spending real money.