Claude Opus 4.5
by Anthropic
· Claude 4 family · released Nov 24, 2025
Closed
Active
Anthropic's flagship model for sustained autonomous coding and agent work, with ~80% lower pricing than Opus 4.1 and dramatically reduced over-eagerness. Launched alongside Claude Code 2.0 and efforts-based pricing.
Pricing
Launch price (from Nov 24, 2025)
$5.00 in / $25.00 out per 1M tokens
Current price (since Nov 24, 2025)
$5.00 in / $25.00 out per 1M tokens
| Tier | Effective | In $/M | Out $/M | Cache $/M | Per image | Per second | Source |
|---|---|---|---|---|---|---|---|
| Standard | Nov 24, 2025 – now | $5.00 | $25.00 | - | - | - | - |
Specifications
| Model type | Multimodal |
|---|---|
| Architecture | Unknown |
| Parameters | Not disclosed |
| Context window | 200K tokens |
| Max output | 64K tokens |
| Knowledge cutoff | Not disclosed |
| License | Proprietary |
| Modalities | Text input Image input Text output |
| Tags | Agentic Coding Flagship Reasoning Tool use |
| End of life | Not disclosed |
| Last verified | Not disclosed |