LLM
GA
Proprietary
Claude Sonnet 5.5
Balanced production coding and document work
Release2026-09-28
Context1M
Max output64,000 tokens
ParametersUndisclosed
Local / VRAMAPI only
LicenseProprietary
Overview
Claude Sonnet 5.5 is a model in the LLM category from Anthropic. It was released in 2026-09-28. The vendor is based in US. Best for: Balanced production coding and document work.
Strengths
- Price/intelligence balance
- 1M context
- Fast
Limits
- Not as deep reasoning as Opus 5.5
Specifications
| Vendor | Anthropic |
|---|---|
| Category | LLM |
| Release | 2026-09-28 |
| Status | GA |
| License | Proprietary |
| Commercial use | Not specified |
| Context window | 1M |
| Max output tokens | 64,000 |
| Input modalities | Text, Image |
| Output modalities | Text |
| Prompt types | Text |
| Negative prompts | No |
| Max outputs | 1 |
| Local deployment | No |
| API access | Yes |
| Pricing | $3 / $15 per 1M token |
| Confidence | High |
| Vendor country | US |
| Vendor type | Frontier lab |
Pricing & hardware
$3 / $15 per 1M token
API-only: local GPU memory is not applicable. API access is available.