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AnthropicText Chat

Claude Sonnet 5 AI Chat Playground and API

Try Claude Sonnet 5 online for balanced coding, analysis, writing, and production assistants. Test streamed responses, inspect token usage, and integrate the API.

Input 63 credits / 1M tokens · Output 311 credits / 1M tokens
Run with API
Claude Sonnet 5
claude-sonnet-5
Streaming
AIReiter
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Model details

Use the same model key in Playground, API requests, and internal workflows.

Model ID
claude-sonnet-5
Provider
Anthropic
Protocol
OpenAI Chat Completions · Anthropic Messages · OpenAI Responses
max_tokens
4,096
Input tokens
63 credits / 1M
Output tokens
311 credits / 1M

What You Can Do with Claude Sonnet 5

Choose Claude Sonnet 5 as a balanced production model for teams that need strong everyday quality without defaulting every request to the highest-cost tier.

Production Coding

Implement features, explain unfamiliar code, and iterate on fixes during everyday development.

Balanced Analysis

Compare options and summarize evidence without the overhead of a flagship-only workflow.

Customer Assistants

Power helpful support and internal assistants that need clear, well-structured responses.

Structured Content

Produce specifications, briefs, release notes, and reusable operational documentation.

Claude Sonnet 5 Use Cases

Best suited to the broad middle of production work: capable enough for serious tasks and practical enough for repeated use.
01

Product Development

Move between code, tests, documentation, and implementation decisions.

02

Internal Knowledge Assistants

Answer operational questions in a clear and useful format.

03

Support Automation

Draft accurate responses and escalate ambiguous cases.

04

Content Production

Create structured, reusable drafts for everyday business needs.

How to Use Claude Sonnet 5

Test the model in three straightforward steps.
01

Choose Your Settings

Set the response controls and upload options supported by the model.

02

Send a Prompt

Describe the task, add relevant context, and review the streamed response and token usage.

03

Connect the API

Use the documented endpoint and your API key to bring the same model into your product.

Build with the Claude Sonnet 5 API

Go from an interactive test to a production integration with predictable controls and usage reporting.

Familiar Protocols

Use the API protocol configured for this model, including streaming where available.

Usage Visibility

Track input tokens, output tokens, and consumed credits after each response.

Model-Specific Controls

Pass the supported generation parameters instead of relying on generic defaults.

One Account and Balance

Test and operate supported text models through the same AIReiter account and billing system.

Claude Sonnet 5 FAQ

Common questions about the online playground, pricing, and API access.
When should I choose Claude Sonnet 5?

Choose it as a balanced production model for coding, analysis, assistants, and structured writing.

How does Sonnet 5 differ from Opus tiers?

Sonnet is the practical default when you need strong everyday capability without routing every task to a flagship tier.

Can Claude Sonnet 5 stream responses?

Yes. The playground streams output and reports usage after completion.

How is Claude Sonnet 5 priced?

Current input and output token rates are displayed above the playground.

Can I integrate Claude Sonnet 5 through an API?

Yes. Open the linked API documentation and send the displayed model ID.