Anthropic / anthropic/claude-opus-5

Claude Opus 5 - access through LLMTR

Anthropic's next-generation Opus model for multi-file code changes, long-horizon agent tasks, code review, and enterprise knowledge work. It offers a 1M context window, 128K max output, adaptive thinking on by default, vision and document input, tool calling, and prompt cache support. Effort is configurable from low through max: keep it low for short tasks and raise it for demanding agentic work.

Technical specifications

Canonical IDanthropic/claude-opus-5
ProviderAnthropic
Context window1,000,000 tokens
OperationsCHAT_COMPLETIONS
Modalitiestext, image

Pricing

A 6% platform margin applies to credit top-ups; model usage prices are not separately marked up.

OperationMetricUnitPrice
CHAT_COMPLETIONSINPUT_TEXTPER_1M_TOKENS$5.00
CHAT_COMPLETIONSCACHE_READPER_1M_TOKENS$0.500000
CHAT_COMPLETIONSOUTPUT_TEXTPER_1M_TOKENS$25.00
CHAT_COMPLETIONSCACHE_WRITEPER_1M_TOKENS$6.25
CHAT_COMPLETIONSCACHE_WRITEPER_1M_TOKENS$10.00

Example usage

With existing OpenAI SDK flows, change only the base URL and model identifier.

curl https://llmtr.com/v1/chat/completions \
  -H "Authorization: Bearer llmtr-your_key" \
  -H "Content-Type: application/json" \
  -d '{"model":"anthropic/claude-opus-5","messages":[{"role":"user","content":"Hello"}]}'

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