Anthropic: Claude 3 multimodal model-family report

What changed

Reported a text-and-image-input language-model family, with shared vision capabilities and evaluated capability/latency tradeoffs across Opus, Sonnet and Haiku.

Scientific scope

Reported a text-and-image-input language-model family, with shared vision capabilities and evaluated capability/latency tradeoffs across Opus, Sonnet and Haiku. One original Claude 3 family report. Constitutional AI and base training techniques are inherited; later Claude 3.5 addenda and marketing superlatives are not counted as original March results.

Evidence

The linked original sources describe the stated contribution and its evidence limits. WRS has not independently rerun the experiments or certified a proof. One original Claude 3 family report. Constitutional AI and base training techniques are inherited; later Claude 3.5 addenda and marketing superlatives are not counted as original March results.

Contributors

• Source-listed authors and technical contributors · SCIENCE: Source-listed authors or explicitly credited technical contributors for the cited versions. Family entries retain source-specific attribution; a combined list is not one original-paper byline or equal individual work. Names alone do not establish resolved identities.

• The Claude 3 Model Family: Opus, Sonnet, Haiku
• Introducing the next generation of Claude

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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