Claude Opus 4.5
Anthropic
Claude Opus 4.5 is Anthropic’s latest model in the Opus series, meant for demanding reasoning tasks and complex problem solving. This model has improvements in general intelligence and vision compared to previous iterations. In addition, it is suited for difficult coding tasks and agentic workflows, especially those with computer use and tool use, and can effectively handle context usage and external memory files.
- Language
- Explicit caching
- File input
- Reasoning
- Tool use
- Vision
- Web search
- Context
- 200K
- Max output
- 64K
- Input / 1M
- $5.00
- Output / 1M
- $25.00
Quickstart
Point any OpenAI-compatible client at Maxynetic Systems and pass anthropic/claude-opus-4.5 as the model.
curl https://api.maxynetic.com/v1/chat/completions \
-H "Authorization: Bearer $MAXYNETIC_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "anthropic/claude-opus-4.5",
"messages": [{ "role": "user", "content": "Explain routing in one line." }]
}'Pricing
Billed per token with no markup on the underlying provider rate.
Input
Per 1M prompt tokens
$5.00
Output
Per 1M completion tokens
$25.00
Cache read
Per 1M cached prompt tokens
$0.500
Cache write
Per 1M tokens written to cache
$6.25
A 1M-token prompt with 250K tokens of output costs about $11.25.