Claude Opus 5
anthropic/claude-opus-5Claude Opus 5 is the most powerful model in the Claude 5 family from Anthropic. It excels at complex reasoning, analysis, and creative tasks with superior accuracy and nuance. It supports text, image, and file inputs with text output, reasoning support and a 1M-token context window.
- Input price
- $4.25
$5.00USD / 1M tokens - Output price
- $21.25
$25.00USD / 1M tokens - Cache read
- $0.42
$0.50USD / 1M tokens - Cache write
- $5.31
$6.25USD / 1M tokens - Context window
- 1M
- Max output
- 128K
Specifications
- Input
- Text, image
- Output
- Text
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Choose either supported API with unified authentication and usage tracking.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/chat/completions" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "anthropic/claude-opus-5",
"messages": [
{
"role": "user",
"content": "Hello"
}
],
"max_tokens": 2048
}
SANDBASE_JSON
)
printf '%s\n' "$result"Questions
FAQ
How do I call Anthropic Claude Opus 5 through SandBase?
Create a SandBase API key, then send requests with the model ID "anthropic/claude-opus-5" to Chat Completions API (/v1/chat/completions) or Messages API (/v1/messages) at https://api.sandbase.ai. The request examples on this page show the exact payload.
How much does Anthropic Claude Opus 5 cost?
$4.25 per 1M input tokens and $21.25 per 1M output tokens with the current 15% discount (list price $5 / $25), billed per request from your SandBase balance.
What is the context window of Anthropic Claude Opus 5?
1M tokens of context, with up to 128K output tokens per response.
Which features does Anthropic Claude Opus 5 support?
Anthropic Claude Opus 5 supports vision (image input), reasoning, function calling, structured output. See Specifications above for the full list.
Do I need a separate Anthropic account?
No. One SandBase API key and balance gives you access to Anthropic Claude Opus 5 and the other models in the catalog; you do not need to sign up with Anthropic separately.