Kitten-TTS 2: Voice Cloning From 5 Seconds — AI Digest

Kitten-TTS 2: Voice Cloning From 5 Seconds — AI Digest

Kitten-TTS 2 clones a voice from under 5 seconds of audio and runs on an ordinary CPU. Also: DeepSeek V4.1 Flash is 29 times cheaper per agent task than Opus 5.5, Canva Craft and the Black October breach wave.

Today's main point for you: on October 22, 2026, Kitten-TTS 2 came out — an open voice-over model that clones a voice from a recording shorter than 5 seconds and runs on an ordinary processor with no graphics card. If you make videos to order, voice-over stops being a line in your expenses. And if you built bots for clients on Railway or LiteLLM, rotate your keys first.

Today's top stories

Kitten-TTS 2: a voice clone from 5 seconds of audio on an ordinary processor

KittenML released Kitten-TTS 2, a 1.7-billion-parameter voice-over model that, according to its developers, speaks in real time on a CPU and clones a voice from a sample shorter than 5 seconds.

The model understands more than 20 languages and controls emotion and stress. Its weights are compressed to 1.58 bits — each weight is stored as −1, 0 or +1, which is why an ordinary computer is enough. A discussion participant measured a real-time factor of 0.506 on an M4 Pro CPU with 8 threads: a minute of speech is ready in about half a minute. Other testers think Kokoro and Omnivoice sound more natural.

Voice cloning is when a model, given a short recording, speaks new text in the same voice.

What it means: client work. Voice-over in a video no longer needs a subscription or a paid narrator — it runs on your own machine at no per-video cost. I would clone a client's voice only with their written consent.

Sources: r/LocalLLaMA · GitHub · Hugging Face · builds for audio.cpp

Canva Craft and Ideogram Vector 1.0: two new models for images and vector graphics

Canva released Craft, its first image-generation model; it debuted in 4th place on the DesignArena ranking, making Canva the second image lab after OpenAI.

The same day Ideogram showed Vector 1.0, a vector-graphics generator. A vector is a drawing made of lines and shapes rather than pixels: it can be scaled up to banner size without losing quality, which is why logos and icons are delivered as vectors. The announcements list no generation prices.

What it means: client work. A model that returns a vector straight away removes the manual tracing of an image — the longest part of this kind of work. I would test how clean Ideogram's outlines are on a trial logo before quoting a client a deadline.

Sources: Canva · DesignArena · TechCrunch · Ideogram

DeepSeek V4.1 Flash: a coding-agent task for $0.39 versus $11.42 with Opus 5.5

Artificial Analysis updated its coding-agent index to version 2.0: Claude Code with Opus 5.5 leads with 61.7 points, while DeepSeek V4.1 Flash scores 47.3 points at $0.39 per task versus $11.42 for Opus.

$0.39 against $11.42 is 29 times cheaper per task. Sonnet 5.5 came second with 59.3 points. In the new version of the index the FrontierCode test replaced DeepSWE, and scores fell for 20 of 21 configurations. Critics point to discrepancies between subtests and possibly mixed-up harness labels.

What it means: your wallet. Everyone compares which model is smarter — what to count is the price of a task. For edits to a client's site or bot, where 47 points out of 62 is enough, the cheap model pays off immediately. I would still hand a hard task to Opus.

Sources: Artificial Analysis · criticism · open-source LLM guide

Black October: LiteLLM with a password stealer, Railway asks to rotate keys, Zeabur shuts down after 321,810 accounts were hacked

Over 48 hours on October 21–22, 2026, a wave of disclosures and breaches hit: a password stealer got into LiteLLM version 1.107.0, Railway asked customers to rotate their secrets, and the hosting company Zeabur is closing after 321,810 accounts were compromised.

The certificate authority eMudhra stored weak keys — one of them, reportedly, was the number 4. A researcher says Claude found them with a single query; eMudhra is leaving that business. Python users are advised to update pip, uv, certifi and system certificate stores. A secret is an access key to a service or a database that sits in an application's settings.

What it means: business. If you handed a client a bot or site that runs on Railway or reaches models through LiteLLM, rotate API keys and database passwords today, not on schedule. It is five minutes of work — cheaper than explaining a leak to the client.

Sources: summary · overview · list of updates · Railway · eMudhra · advice for Python

MiniMax M3.1 Flash: open weights, 428 billion parameters and a 1-million-token context

MiniMax published the weights of M3.1 Flash — a 428-billion-parameter model of which 23 billion work on each token, with a 1-million-token context and image understanding.

The company claims 73.7% on DeepSWE v1.1 and 61.7 on OSWorld V2. vLLM supported the model on release day: weights and cache in NVFP4 format compress it by 44.6%, to 250.1 GB. On four B300s at a 256K-token context, 76 parallel requests fit versus 28 for M3. Critics see the release as a renamed M3 with quantization and the DSpark accelerator.

What it means: for the technically minded. This is a model for your own server, not for a laptop: 250 GB of weights. If you run an agent on rented B300s, three times as many simultaneous requests on the same hardware is a direct saving.

Sources: MiniMax · vLLM · criticism

Agent Skills: Anthropic handed the skills format to the Agentic AI Foundation, and 70+ platforms already support it

Anthropic transferred the Agent Skills standard to the Agentic AI Foundation; more than 70 platforms already support the format, and a technical committee from Anthropic, Google, Microsoft, OpenAI and other companies will govern it.

A skill is a folder with instructions and files that an agent loads when it takes on a task of a particular type. The same day, Hugging Face is moving its OpenEnv project for training environments to the foundation and the Linux Foundation.

What it means: for the technically minded. A skill built once is no longer tied to a single agent: several companies stand behind the standard. Investing in your own skill library is now safer.

Sources: ClaudeDevs · OpenEnv · catalog of skills for Claude Code

Claude proved the safety of 123 open libraries: 180 million lines of verified proofs

Anthropic's Frontier Red Team, together with Theorem Labs, used Claude over a few weeks to prove safety properties of more than 100 open libraries.

By the count of the author of the write-up, that is about 180 million lines of machine-checked proofs for 239 entry points in 123 libraries; hundreds of bugs were fixed along the way. Formal verification means code safety is not checked with tests but proved mathematically, and a program checks the proof.

What it means: for the technically minded. Against a backdrop of breaches this is rare good news: a check that used to take people years now takes weeks. I would choose libraries with such a proof first.

Sources: Anthropic · count

Numbers and facts

Our own summary: what from the October 21–22, 2026 releases you can run yourself, and on what.

ModelSizeWhere to runSource
Kitten-TTS 21.7 billion parameters, 1.58 bitsordinary processorGitHub
Raon-1-mini-preview30 billion, about 4 billion activeMLX on Mac, NVFP4Hugging Face
Recursive Flintabout 24 GB of memory at 4 bitsMac M5 Max, 131 tokens per secondRapid-MLX
OCRia-14 billion parametersabout 4,700 tokens per second on one B200measurement
MiniMax M3.1 Flash250.1 GB in NVFP4four B300svLLM

Different views: are attackers with AI already outpacing defense?

The flow of vulnerabilities has reportedly grown from 4,000 to 15,000 a month since April 2026, and October 21–22 brought a series of major disclosures and breaches at once. The debate over what this means is going on inside the industry too.

Tools and techniques

In brief