$ diff claude-sonnet-5-5 granite-4-2
Claude Sonnet 5.5 vs Granite 4.2
Values come from Claude Sonnet 5.5 and Granite 4.2, 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.
AnthropicClaude Sonnet 5.5
- context
- 1M
- weights
- closed
- $/M in
- $2
- $/M out
- $10
- context
- 512K
- weights
- open
- $/M in
- —
- $/M out
- —
What actually differs
- Context window
- Claude Sonnet 5.5 takes 1M against 512K — modestly more room in a single request.
- Weights
- Granite 4.2 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
- Claude Sonnet 5.5 shipped 34 days after Granite 4.2 (2026-09-28 vs 2026-08-25).
Full spec
| Attribute | Claude Sonnet 5.5 | Granite 4.2 |
|---|---|---|
| Developer | Anthropic | IBM |
| Released | 2026-09-28 | 2026-08-25 |
| Context window | 1M tokens | 512K (30B); unknown (3B, 8B) |
| Pricing | $2/M input · $10/M output · cache reads 10% of base input | not applicable — open weights, no hosted rate published |
| License | proprietary (API-only; no weight release) | Apache 2.0 |
| Availability | Claude apps, Claude API as `claude-sonnet-5-5`, Amazon Bedrock, Google Cloud Vertex AI, Microsoft Foundry, Claude Platform on AWS | Hugging Face, Ollama, GitHub |