Claude Opus 5 API: Pricing and Specs

Claude Opus 5 API

Claude Opus 5 is a large language model by Anthropic, available on the Venice API as claude-opus-5. Requests are anonymized, so the provider never sees your identity.Claude Opus 5, the successor to Opus 4.8, delivers major gains in agentic coding, professional knowledge work, and long-horizon reasoning, with a 1M token context window, 128K max output tokens, adaptive thinking, and strong multimodal capabilities.

Claude Opus 5 API pricing

Model ID	Variant	Privacy	Price
`claude-opus-5`	Standard	Anonymized	$5.00 / $25.00 per 1M
`claude-opus-5-fast`	Fast	Anonymized	$10.00 / $50.00 per 1M

Claude Opus 5 specifications

Spec	Value
Provider	Anthropic
Released	Jul 23, 2026
Privacy	Anonymized
Status	Stable
Context window	1M tokens
Max output	128K tokens
Reasoning effort	low, medium, high, xhigh, max

How to use the Claude Opus 5 API

Send requests to POST https://api.venice.ai/api/v1/chat/completions with "model": "claude-opus-5" and your API key.

curl https://api.venice.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $VENICE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-opus-5",
    "messages": [{ "role": "user", "content": "Explain TEE attestation in two sentences." }],
    "reasoning_effort": "medium"
  }'

Related models

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Claude Opus 4.7 API: $5.00 / $25.00 per 1M
Claude Opus 4.6 API: $5.00 / $25.00 per 1M
Claude Opus 4.5 API: $5.00 / $25.00 per 1M
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Kimi K3.1 Pro Highspeed API: $5.00 / $25.00 per 1M
GPT-5.6 Sol API: $4.00 / $20.00 per 1M
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Explore

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Claude Opus 5 API