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Ossington 4

Mixture of Experts architecture with 11 billion active parameters per token. The most powerful model available today with fully Canadian inference and data storage.

78
Intelligence Benchmark
vs. 54 on O3
89%
Document Review
+28 points
98%
Canadian Law
domain eval
What’s Improved
+44%
Intelligence benchmark
78 vs 54 on our internal composite benchmark — reasoning, knowledge, math, and coding.
+28pt
Document review
89% accuracy — improved clause classification and fewer false positives.
↑
Canadian domain knowledge
Expanded training data — case law, legislation, Hansard, Quebec French. 98% Canadian law, 91% tax.
↑
Better output quality
Improved instruction following, coding snippets, and Quebec French quality.

Model specifications

256k Context
Process entire books
MoE
11B active params
Bilingual
EN + QC French
Sovereign
100% Canadian
No Training
Your data is never used for model training.
Encrypted
TLS 1.3 in transit, AES-256 at rest.
Thinking Mode
Extended reasoning for complex tasks.

Built for complex work

Legal Reasoning

Analyze contracts, summarize case law, draft legal memos. Ossington 4 scores 98% on Canadian law evaluations — including Law 25, PIPEDA, and federal procurement requirements.

Strategic Analysis

Process complex documents, cross-reference multiple sources, and produce structured analysis. 256k context means you can work with entire reports, not just excerpts. 89% document review accuracy.

Long-Form Writing

Generate compliance documentation, policy drafts, and detailed reports. Native bilingual output in English and Québécois French — 100% on French quality evaluations.

Also available: Tofino 2.5 for everyday speed

Try Ossington 4 today

Available on all plans. Free includes a daily limit — upgrade for unlimited.

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