Claude is a family of state-of-the-art large language models developed by Anthropic.

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Using the API

Use Chat completion API to call Claude models. See the pricing page for pricing details.

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Claude models comparison from Anthropic

FeatureClaude 4 SonnetClaude 4 OpusClaude 3.7 SonnetClaude 3.5 SonnetClaude 3.5 Haiku
DescriptionMost advanced Claude modelHighly capable for complex tasksEnhanced Claude 3.5 SonnetVersatile and intelligentFast and efficient
StrengthsTop-level intelligence and reasoningExceptional fluency and understandingImproved performance and efficiencyBalanced performanceQuick and accurate
MultilingualYesYesYesYesYes
VisionYesYesNoNoNo
Tool callsYesYesYesYesYes
API model
name		claude-sonnet-4-20250514
claude-sonnet-4-20250514-thinking		claude-opus-4-20250514
claude-opus-4-20250514-thinking		claude-3-7-sonnet-latest
claude-3-7-sonnet-20250219		claude-3-5-sonnet-20241022
claude-3-5-sonnet-20240620
claude-3-5-sonnet-latest		claude-3-5-haiku-20241022
claude-3-5-haiku-latest
Comparative
latency		FastestFastFastModerately fastFastest
Context
window		200K200K200K200K200K
Max output8192 tokens4096 tokens8192 tokens8192 tokens8192 tokens
Training data
cut-off		May 2025May 2025June 2024June 2024June 2024

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Official documentations