LLM
Legacy
Proprietary
Claude Sonnet 5
Existing Sonnet 5 integrations (migrate to Sonnet 5.5)
Release2026-06-30
Context1M
Max output—
ParametersUndisclosed
Local / VRAMAPI only
LicenseProprietary
Overview
Claude Sonnet 5 is a model in the LLM category from Anthropic. It was released in 2026-06-30. The vendor is based in US. Best for: Existing Sonnet 5 integrations (migrate to Sonnet 5.5).
Notes: Context window assumed 1M like Sonnet 5.5; max output not verified.
Strengths
- Price/intelligence balance
- Predecessor of Sonnet 5.5
Limits
- Sonnet 5.5 is faster and cheaper for most work
- Weak on agentic terminal tasks vs 5.5 (10.3% vs 70.6% Terminal-Bench 4.0)
Specifications
| Vendor | Anthropic |
|---|---|
| Category | LLM |
| Release | 2026-06-30 |
| Status | Legacy |
| License | Proprietary |
| Commercial use | Not specified |
| Context window | 1M |
| Input modalities | Text, Image |
| Output modalities | Text |
| Prompt types | Text |
| Negative prompts | No |
| Max outputs | 1 |
| Local deployment | No |
| API access | Yes |
| Pricing | $2 / $10 per 1M token |
| Confidence | Medium |
| Vendor country | US |
| Vendor type | Frontier lab |
Pricing & hardware
$2 / $10 per 1M token
API-only: local GPU memory is not applicable. API access is available.