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Claude 3 Opus

Claude 3 Opus is the highest-capability tier in the Claude 3 family from Anthropic. It targets complex tasks with strong recall across a context window of 200K tokens and a twofold accuracy improvement over Claude 2.1 on open-ended questions.

Explicit Caching
index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'anthropic/claude-3-opus',
  prompt: 'Why is the sky blue?'
})
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Frequently Asked Questions

  • What specific reasoning benchmarks did Anthropic highlight for Claude 3 Opus?

    Anthropic reported Opus outperformed peer models on MMLU (undergraduate-level expert knowledge), GPQA (graduate-level expert reasoning), and GSM8K (basic mathematics) at the time of the March 1, 2023 launch.

  • How accurate is Claude 3 Opus on factual questions compared to Claude 2.1?

    Anthropic measured a twofold improvement in correct answers on complex factual questions, with a simultaneous reduction in hallucinated responses. The model produced more right answers and fewer confidently wrong ones.

  • What did Claude 3 Opus do on the Needle In A Haystack recall evaluation?

    Opus exceeded 99% recall accuracy. In some cases, it identified that test needles appeared artificially inserted into the corpus. Anthropic described this as recognizing the limits of the evaluation itself.

  • Can Claude 3 Opus process images and visual content?

    Yes. All Claude 3 models share the same vision architecture for processing photos, charts, graphs, and technical diagrams. Opus applies the same comprehension depth to visual inputs as it does to text.

  • Is the 1 million token context window available for Claude 3 Opus through AI Gateway?

    Anthropic indicated that inputs exceeding 1M tokens were technically feasible for Opus and available to select customers. The standard supported context window through AI Gateway is 200K tokens. Contact your Vercel account team about extended context availability.

  • How does Opus's speed compare to other Claude 3 models?

    Anthropic noted that Opus delivers similar speeds to Claude 2 and 2.1. Sonnet was 2x faster than those predecessors, and Haiku was positioned as the fastest. For latency-sensitive work, Haiku or Sonnet variants are better choices.

  • What structured output improvements did Claude 3 Opus include?

    All Claude 3 models, including Opus, improved at producing structured output like JSON, following multi-step instructions, and adhering to brand voice guidelines. Anthropic highlighted these improvements for enterprise customer-facing deployments.