Claude 3.5 Haiku

Later this year



Claude 3.5 Sonnet

Our most intelligent model

Text and image input

Text output

200k context window

Claude 3.5 Opus

Later this year



Claude 3 Haiku

Fast and cost-effective

Text and image input

Text output

200k context window

Claude 3 Sonnet

Balance of speed and intelligence

Text and image input

Text output

200k context window

Claude 3 Opus

Excels at writing and complex tasks

Text and image input

Text output

200k context window

Model names

ModelAnthropic APIAWS BedrockGCP Vertex AI
Claude 3.5 OpusLater this yearLater this yearLater this year
Claude 3.5 Sonnetclaude-3-5-sonnet-20240620anthropic.claude-3-5-sonnet-20240620-v1:0claude-3-5-sonnet@20240620
Claude 3.5 HaikuLater this yearLater this yearLater this year
ModelAnthropic APIAWS BedrockGCP Vertex AI
Claude 3 Opusclaude-3-opus-20240229anthropic.claude-3-opus-20240229-v1:0claude-3-opus@20240229
Claude 3 Sonnetclaude-3-sonnet-20240229anthropic.claude-3-sonnet-20240229-v1:0claude-3-sonnet@20240229
Claude 3 Haikuclaude-3-haiku-20240307anthropic.claude-3-haiku-20240307-v1:0claude-3-haiku@20240307

Model comparison

Here is a visualization comparing cost vs. speed across Claude 3 and 3.5 models, showcasing the range in tradeoffs between cost and intelligence:

To help you choose the right model for your needs, we’ve compiled a table comparing the key features and capabilities of each model in the Claude family:

Claude 3.5 SonnetClaude 3 OpusClaude 3 SonnetClaude 3 Haiku
DescriptionMost intelligent modelPowerful model for highly complex tasksBalance of intelligence and speedFastest and most compact model for near-instant responsiveness
StrengthsHighest level of intelligence and capabilityTop-level performance, intelligence, fluency, and understandingStrong utility, balanced for scaled deploymentsQuick and accurate targeted performance
MultilingualYesYesYesYes
VisionYesYesYesYes
API model nameclaude-3-5-sonnet-20240620claude-3-opus-20240229claude-3-sonnet-20240229claude-3-haiku-20240307
API formatMessages APIMessages APIMessages APIMessages API
Comparative latencyFastModerately fastFastFastest
Context window
Max output
Cost (Input / Output per )$3.00 / $15.00$15.00 / $75.00$3.00 / $15.00$0.25 / $1.25
Training data cut-offApr 2024Aug 2023Aug 2023Aug 2023

Prompt and output performance

The Claude 3 family excels in:

  • ​Benchmark performance: Top-tier results in reasoning, coding, multilingual tasks, long-context handling, honesty, and image processing. See the Claude 3 model card for more information.

  • Engaging responses: Claude 3 models are ideal for applications that require rich, human-like interactions.

    • If you prefer more concise responses, you can adjust your prompts to guide the model toward the desired output length. Refer to our prompt engineering guides for details.
  • Output quality: When migrating from previous model generations to the Claude 3 family, you may notice larger improvements in overall performance.


Legacy models

We recommend migrating to the Claude 3 family of models. However, we understand that some users may need time to transition from our legacy models:

  • Claude Instant 1.2: A fast and efficient model predecessor of Claude Haiku.
  • Claude 2.0: The strong-performing predecessor to Claude 3.
  • Claude 2.1: An updated version of Claude 2 with improved accuracy and consistency.

These models do not have the vision capabilities of the Claude 3 family and are generally slower, less performant and intelligent.

While there are no plans yet to sunset legacy models, we still recommend migrating to the Claude 3 family to take advantage of cutting-edge features and model improvements.


Legacy model comparison

To help you choose the right model for your needs, this table compares key features and capabilities.

Claude 2.1Claude 2Claude Instant 1.2
DescriptionUpdated version of Claude 2 with improved accuracyPredecessor to Claude 3, offering strong all-round performanceOur cheapest small and fast model, a predecessor of Claude Haiku
StrengthsLegacy model - performs less well than Claude 3 modelsLegacy model - performs less well than Claude 3 modelsLegacy model - performs less well than Claude 3 models
MultilingualYes, with less coverage, understanding, and skill than Claude 3Yes, with less coverage, understanding, and skill than Claude 3Yes, with less coverage, understanding, and skill than Claude 3
VisionNoNoNo
API model nameclaude-2.1claude-2.0claude-instant-1.2
API formatMessages & Text Completions APIMessages & Text Completions APIMessages & Text Completions API
Comparative latencySlower than Claude 3 model of similar intelligenceSlower than Claude 3 model of similar intelligenceSlower than Claude 3 model of similar intelligence
Context window
Max output
Cost (Input / Output per )$8.00 / $24.00$8.00 / $24.00$0.80 / $2.40
Training data cut-offEarly 2023Early 2023Early 2023

Get started with Claude

If you’re ready to start exploring what Claude can do for you, let’s dive in! Whether you’re a developer looking to integrate Claude into your applications or a user wanting to experience the power of AI firsthand, we’ve got you covered.

Check out our quickstart guide for step-by-step instructions on how to get up and running with Claude. You’ll learn how to create an account, obtain API keys, and start interacting with our models in no time. You can also head over to claude.ai or our web Console to start experimenting with Claude right away!

If you have any questions or need assistance, don’t hesitate to reach out to our support team or consult the Discord community.