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Claude is an AI assistant developed by Anthropic that uses large language models to generate text and support conversational tasks.
Last month, we introduced Claude 3.7 Sonnet, our most capable model yet with an “extended thinking mode”. We reran our previous analysis on data from the 11 days following the launch, covering 1 million anonymized Claude.ai Free and Pro conversations. The vast majority of the data we analyzed was from Claude 3.7 Sonnet, as it is set as the default on Claude.ai and our mobile app. As a reminder, our privacy-preserving analysis tool, Clio, maps each conversation to one of 17,000 tasks in the U.S. Department of Labor’s O*NET database. We then look at the overall patterns in the occupations and hi
Anthropic Economic Index: Insights from Claude 3.7 Sonnet… This is especially pronounced for fluency behaviors related to evaluating Claude’s outputs. Conversations with iteration and refinement are 5.6x more likely to involve users questioning Claude’s reasoning, and 4x more likely to see them identify missing context. …
… A typical invocation prompt in Claude Code could look like /ralph-loop:ralph-loop “Please keep working on the task until the success criterion of 0.1% accuracy across the entire parameter range is achieved.” --max-iterations 20 --completion-promise “DONE” Here, Claude will iterate up to 20 times un… …
… We reran our previous analysis on data from the 11 days following the launch, covering 1 million anonymized Claude.ai Free and Pro conversations. The vast majority of the data we analyzed was from Claude 3.7 Sonnet, as it is set as the default on Claude.ai and our mobile app. …
… That took real iteration, since the relevant knowledge is recent enough that Claude's training data covers it thinly. …
… Similarly, pay attention to instructions or code within the skill that instruct Claude to connect to potentially untrusted external network sources. The future of Skills Agent Skills are supported today across Claude.ai , Claude Code, the Claude Agent SDK, and the Claude Developer Platform. …
… We’re seeing 50% to 75% reductions in both tool calling errors and build/lint errors with Claude Opus 4.5 . It consistently finishes complex tasks in fewer iterations with more reliable execution. Claude Opus 4.5 is smooth, with none of the rough edges we've seen from other frontier models. …
… Footnotes Related content Natural Language Autoencoders: Turning Claude’s thoughts into text AI models like Claude talk in words but think in numbers. In this study we train Claude to translate its thoughts into human-readable text. …
… Connecting Claude to creative tools Connectors allow Claude to access other platforms and tools directly. We are adding several new connectors that are designed to make it easier to use Claude for creative work: Ableton grounds Claude’s answers in official product documentation for Live and Push. …
… We asked the surveyed engineers and researchers to rate how often they used Claude for various types of coding tasks, such as “debugging” using Claude to help fix errors in code , “code understanding” having Claude explain existing code to help the human user understand the codebase , “refactoring”… …