LLM
Legacy
Proprietary
Claude Opus 4.5
Legacy pipelines pinned to Opus 4.5
Release2025-11-24
Context200K
Max output64,000 tokens
ParametersUndisclosed
Local / VRAMAPI only
LicenseProprietary
Overview
Claude Opus 4.5 is a model in the LLM category from Anthropic. It was released in 2025-11-24. The vendor is based in US. Best for: Legacy pipelines pinned to Opus 4.5.
Notes: Still listed as an available legacy model.
Strengths
- Strong coding
- First Opus at the $5 / $25 price
Limits
- 200K context
- Overtaken by Opus 4.7 to 5.5
Specifications
| Vendor | Anthropic |
|---|---|
| Category | LLM |
| Release | 2025-11-24 |
| Status | Legacy |
| License | Proprietary |
| Commercial use | Not specified |
| Context window | 200K |
| 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 | $5 / $25 per 1M token |
| Confidence | High |
| Vendor country | US |
| Vendor type | Frontier lab |
Pricing & hardware
$5 / $25 per 1M token
API-only: local GPU memory is not applicable. API access is available.