No longer supported

This model is deprecated (released March 2023) and is no longer actively maintained or recommended by Anthropic. Consider using their current flagship model instead.

deprecatedlegacyllm Proprietary

Claude 1.1

by Anthropic· Released March 2023· Cutoff December 2022

Claude 1.1 is an early version of Anthropic's Claude model, offering improved performance over the original Claude 1.0 with better reasoning and reduced harmful outputs. It was part of the initial Claude lineup before being superseded by Claude 2 and later models.

Official Site

Input cost

$2.90 per 1M tokens

Output cost

$8.60 per 1M tokens

Context window

9000 tokens

Max output

3000 tokens

Modalities

text

License

proprietary

Capabilities

Text GenerationCode GenerationQuestion AnsweringSummarizationTranslationSentiment Analysis

Best For

General-purpose text generation and analysis tasks with a focus on safety and helpfulness.

Strengths

Strong safety alignment and reduced harmful outputs
Good at following instructions and maintaining context
Competent in reasoning and analysis tasks

Limitations

Smaller context window compared to later models
No vision or multimodal capabilities
Outperformed by Claude 2 and later versions in benchmarks
Limited to text-only inputs

Use Cases

Content generation and editing

Customer support chatbots

Data extraction and summarization

Code assistance and debugging

Language translation

Educational tutoring

Brainstorming and creative writing

Improvements Over Previous Model

Improved reasoning and reduced harmful outputs compared to Claude 1.0
Better instruction following and context retention
Enhanced safety features and alignment techniques
More consistent and reliable responses

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