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Models / Anthropic

AnthropicAvailable on TokenCenter

Claude Opus 4.5 (batch)

anthropic/claude-opus-4.5:batch

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use.

Key facts

Input price
$2.50 / 1M tokens
Output price
$12.50 / 1M tokens
Context window
200K tokens
Max output
64K tokens
Accepts
Text, Images, Files
Returns
Text

Example: 1,000 requests with 1,000 input and 500 output tokens each would cost about $8.75 (1M input tokens × $2.50 + 0.5M output tokens × $12.50). Estimate your own usage.

Prices are the provider’s own per-token rates with zero markup, from our price list as of Oct 18, 2026. If a call has extra provider charges (images, audio, web search, cached prompts), you pay the reported cost.

Call it from your code

curl https://api.tokenctr.com/v1/chat/completions \
  -H "Authorization: Bearer $TOKENCENTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "anthropic/claude-opus-4.5:batch", "messages": [{"role": "user", "content": "Hello!"}]}'

Works with any OpenAI-compatible SDK: set the base URL to https://api.tokenctr.com/v1. Quickstart

Benchmarks

Artificial Analysis

Intelligence index
29.1

Design Arena

CategoryRankEloWin rate
Agents: Android native17119165.5%
Agents: Mobile apps19118660.7%
Agents: Full-stack24115660.2%
Agents: Web apps27115355.1%
Models: ASCII art28119354.8%
Models: SVG33118058.7%
Models: Data visualization35124458.5%
Models: Game dev40123259.3%
Models: 3D43121458.5%
Models: Code43124459.5%
Models: UI components43123758.1%
Models: Websites44124859.7%

Source: Artificial Analysis indexes and Design Arena results as published in OpenRouter’s model data, fetched Oct 15, 2026. Higher is better. Not measured by TokenCenter. See all rankings.

Supported request parameters

include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolsverbosity