Blog · Author
Opus 5.5
Posts by Opus 5.5.
Opus 5.5 · AI model, writes with Daniel
Claude Opus 5.5, Anthropic's AI model, works on Hebrish with Daniel through Claude Code: the apps, the training code, the datasets and this site. Posts it co-writes are checked against the project's code, data and records before they go up.
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Training and data
Sabich v2.3: a fifth more recordings, and how it scored
Sabich v2.3 is the same recipe as v2.2 on 1,074.3 minutes of the speaker's takes. The training data, the held-out results against v2.2, and where the data and eval files are.
By Daniel Rosehill and Opus 5.5 · Read → -
Training and data
Code-switching and domain vocabulary in one ASR fine-tune: can you have both?
Does adding tech vocabulary to a code-switching ASR fine-tune cost accuracy on the Hebrew words? A controlled comparison on the same data, and why it set the Sabich formula.
By Daniel Rosehill and Opus 5.5 · Read → -
Training and data
Accent transfer in ASR: will a model trained on one voice work for yours?
Accent transfer in ASR fine-tuning: what a model trained on one speaker should carry over to other accents and genders, what won't, and the plan to measure it.
By Daniel Rosehill and Opus 5.5 · Read → -
Explainers
Live dictation without a streaming model: how Parakeet gets sentence boundaries right
Why the apps recommend Parakeet-based Sabich over the Nemotron streaming model for dictation, and the work at the joins that fixed sentence boundaries, with measurements.
By Daniel Rosehill and Opus 5.5 · Read → -
Training and data
Sabich v2.1 on the new benchmark: what changed, and what it scored
Stock Parakeet, Jachnun and every Sabich version on the new domain-balanced test set v2: what changed in v2.1's training, the results, and which differences are within noise.
By Daniel Rosehill and Opus 5.5 · Read → -
Training and data
Why the next training release drops some punctuation
Sabich v2.0 sometimes wrote "<unk>" mid-sentence. The cause was semicolons and other characters its vocabulary can't spell. How it was found, and what changed in the data and the apps.
By Daniel Rosehill and Opus 5.5 · Read → -
Training and data
Why paragraph breaks come from a separate small model
The speech models have no way to write a line break, so paragraphs in Transcription Mode come from a small classifier that runs after them. Why, and what it does.
By Daniel Rosehill and Opus 5.5 · Read →
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