Claude Sonnet 3.5

claude-3-5-sonnet-latest

Run Claude Sonnet 3.5 in a hosted Python Task with web search, file inputs and MCP connectors.

⚠️ Retired model no longer available via API. This model was retired on October 28, 2025. Please migrate to Claude Sonnet 4.5.

Deprecated model

This model is deprecated and not recommended for new projects. It retires on October 28, 2025.

What Claude Sonnet 3.5 supports in qbash

MCP connectorsCalls tools on MCP connectors during a request.
Web searchSearches the web while it answers.
Image inputReads WEBP, PNG, JPEG and GIF images.
Document inputReads PDF, TEXT, DOC, XLS, RTF and 7 more files.

What is qbash?

qbash is where you build Tasks: Python programs that run a business process on managed infrastructure. Your code runs the steps and calls a model like Claude Sonnet 3.5 only at the ones that need judgment, with integrations, memory and files available in the same script.

A developer writes the Task once, and anyone on the team runs it from a form, on a schedule, from a webhook or from chat. Each Task is versioned and every run is logged.

How Tasks work

Specifications

Context window: 200Ktokens
Max output: 8,192tokens
Temperature: 0 to 1default 0.7

Use Claude Sonnet 3.5 in a Python Task

qbash.ai.raw calls Claude Sonnet 3.5 from a Task and returns its reply as a string.

main.py
notes = qbash.inputs.get("notes")

summary = qbash.ai.raw(
    f"Summarize these meeting notes in five bullets:\n\n{notes}",
    model="claude-3-5-sonnet-latest",
    system="You are a concise analyst.",
)

qbash.output({"summary": summary})

Model calls in Tasks

Connect Claude Sonnet 3.5 to MCP servers

In qbash chat and a Task's inline prompts, you can attach MCP connectors to Claude Sonnet 3.5. It calls their tools during the request, for example to read a Postgres table or post to a Slack channel.

This is MCP on the model side. Adding MCP servers to Claude Code or Claude Desktop is a separate setup, and qbash can publish your Tasks as an MCP server for those clients as well.

Browse connectors Connect a client

Use Claude Sonnet 3.5 with web search

Turn on Web Search in an inline prompt's model bar and Claude Sonnet 3.5 searches the web while it answers.

Provider web tools

Supported file formats

Images

WEBP up to 5 MB
PNG up to 5 MB
JPEG up to 5 MB
GIF up to 5 MB

Documents

PDF
TEXT
DOC
XLS
RTF
DOCX
XLSX
PPTX
PPT
ODT
ODP
ODS