Anthropicclaude-opus-4.5-20251101
anthropic/claude-opus-4.5-20251101
featuredcodingreasoningagents
Anthropic's most capable Claude 4.5 model for complex reasoning, software engineering and agentic workflows. Vision input, 200K context window, up to 64K output tokens. Released 2025-11.
Pricing
USD per 1M tokens, billed per token. Cached input applies where the provider caches prompts.
- Input
- $5.00
- Output
- $25.00
- Cached input
- $0.500
Specifications
- Context length
- 200K
- Max output tokens
- 64,000
- Input
- text, image
- Output
- text
- Endpoints
- anthropic, openai
- Released
- Nov 24, 2025
- Alias accepted
- claude-opus-4.5-20251101
Example request
curl https://api.nxioai.com/api/v1/chat/completions \
-H "Authorization: Bearer $NXIO_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"anthropic/claude-opus-4.5-20251101","messages":[{"role":"user","content":"Hello"}]}'Price history
Every price change opens a new version. Past requests are billed with the version in effect at the time.
| Effective | Until | Input | Output | Cached input | Source |
|---|---|---|---|---|---|
| Oct 6, 2026 | current | $5.00 | $25.00 | $0.500 | sync |