$ diff kolibri-1 claude-sonnet-5-5
Kolibri-1 vs Claude Sonnet 5.5
Values come from Kolibri-1 and Claude Sonnet 5.5, where each is cited to its source. This page states no benchmark result and ranks neither model — it puts two published specifications next to each other. Where a lab has not published a figure, the row says so rather than guessing.
Aleph AlphaKolibri-1
- context
- 16K
- weights
- open
- $/M in
- —
- $/M out
- —
- context
- 1M
- weights
- closed
- $/M in
- $2
- $/M out
- $10
What actually differs
- Context window
- Claude Sonnet 5.5 takes 1M against 16K — 61.0× more room in a single request.
- Weights
- Kolibri-1 publishes weights (Apache 2.0); Claude Sonnet 5.5 is API-only. That decides self-hosting, air-gapped deployment and fine-tuning before any capability question does.
- Recency
- Kolibri-1 shipped 5 days after Claude Sonnet 5.5 (2026-10-03 vs 2026-09-28).
Full spec
| Attribute | Kolibri-1 | Claude Sonnet 5.5 |
|---|---|---|
| Developer | Aleph Alpha | Anthropic |
| Released | 2026-10-03 | 2026-09-28 |
| Context window | 16,384 tokens native; up to 1,048,576 extended | 1M tokens |
| Pricing | not recorded | $2/M input · $10/M output · cache reads 10% of base input |
| License | Apache 2.0 | proprietary (API-only; no weight release) |
| Availability | full weights on Hugging Face | Claude apps, Claude API as `claude-sonnet-5-5`, Amazon Bedrock, Google Cloud Vertex AI, Microsoft Foundry, Claude Platform on AWS |