Birch — Anitarian flagship model.
Research preview. A mixture-of-experts system with 11 billion active parameters per token. The most powerful sovereign model available — fully Canadian inference and storage.
Built to compete on the work that matters.
Where this generation moved.
+44% intelligence
78 vs 54 on internal composite covering reasoning, knowledge, math, and coding.
+28pt document review
89% accuracy with improved clause classification and fewer false positives.
Canadian domain knowledge
Expanded coverage of case law, legislation, Hansard, and Quebec French. 98% on law, 91% on tax.
Better output quality
Enhanced instruction following, coding, and Quebec French quality.
Model specs.
| Context window | 256k — process entire books in one pass |
| Architecture | Mixture of experts with 11B active parameters |
| Languages | English + Quebecois French |
| Data sovereignty | 100% Canadian |
| Training data | Your data is never used for model training |
| Encryption | TLS 1.3 in transit, AES-256 at rest |
| Special | Thinking Mode for extended reasoning |
Built for complex work.
Legal reasoning
Analyze contracts, summarize case law, draft legal memos. 98% on Canadian law evaluations.
Strategic analysis
Process complex documents and cross-reference multiple sources. 256k context handles entire reports.
Long-form writing
Compliance docs, policy drafts, detailed reports — bilingual native output.
Need everyday speed? Cedar is the fast everyday model.
Try Birch today.
Available on all plans. Free tier includes daily limits; upgrade for unlimited access.