Claude Opus 4.1 is retired on the Claude API

DeprecationAug 5, 2026VerifiedAdded Sep 22, 2026

All requests to claude-opus-4-1-20250805 now return an error. Anthropic recommends upgrading to Claude Opus 5; researchers can request continued access through the External Researcher Access Program.

LLMs Developer tools

Read Anthropic's release notes

https://platform.claude.com/docs/en/release-notes/overview#august-5-2026

Summaries of vendors' own notes. Product names and logos belong to their owners; logos via logo.dev.

More Claude Platform releases

Claude PlatformAug 5, 2026

Inference hooks

are now in beta for Claude Enterprise organizations. Point Claude at your organization's AI security server, and each governed prompt across claude.ai, Cowork, and Claude Code is held for the server's allow or deny verdict before inference proceeds.

BetaLLMsGovernanceSecuritySource

Claude PlatformAug 7, 2026

Claude Managed Agents sessions support hard spend budgets

A session budget caps spend at public list rates; when reached, the session pauses with the budget_reached stop reason instead of starting new model requests. Deployments can apply the same budget to every session they start.

PricingAI agentsLLMsPricingSource

Claude PlatformAug 7, 2026

Claude Managed Agents sessions can consult an advisor model

An advisor entry in the agent's multiagent roster names a model at least as capable as the agent's own that the primary thread can consult mid-turn for strategic guidance.

UpdateAI agentsLLMsSource

Claude PlatformAug 7, 2026

Claude Managed Agents adds inference_geo to control where inference runs

Set inference_geo in the model object when creating an agent, or override it per session, to control data residency for model inference.

UpdateAI agentsLLMsPricingSource

Claude PlatformAug 7, 2026

Claude Managed Agents sessions load skills from GitHub repositories

When a session mounts a repository, skills in its root .claude/skills directory are discovered automatically at session start and available to the agent.

UpdateAI agentsLLMsSource

Claude PlatformAug 3, 2026

Compliance API returns cloud Cowork session transcripts in beta

New /v1/compliance/apps/sessions/remote endpoints list Cowork sessions started on claude.ai web or mobile and return their transcripts for Claude Enterprise organizations.

BetaLLMsGovernanceDeveloper toolsSource

Claude PlatformAug 1, 2026

Dreams research preview adds support for Claude Opus 5

Dreams, in research preview, now supports Claude Opus 5.

PreviewLLMsSource

Claude PlatformAug 10, 2026

Claude Sonnet 5 introductory pricing of $2 / $10 per MTok becomes permanent

The introductory Claude Sonnet 5 price is now standard, and the scheduled increase to $3 / $15 per MTok on September 1, 2026 will not happen.

PricingLLMsPricingSource

Also shipped on Aug 5, 2026

Snowflake Snowflake OpenflowAug 5, 2026

Openflow Connector for SQL Server (CDC) (General availability)

The Openflow Connector for SQL Server (CDC) is now generally available. The connector captures every row-level change from Microsoft SQL Server using Change Data Capture (CDC) and replicates selected tables into Snowflake in near real-time or on a schedule. It supports initial snapshot load, incremental sync, and schema evolution.

GASQLStreamingData integrationSource

Databricks LakeflowAug 5, 2026

REPLACE USING flows for pipelines (Beta)

REPLACE USING flows are now available in Lakeflow pipelines in Beta . Use a REPLACE USING flow when your source is a series of partial snapshots keyed by column. On each update, the flow replaces all rows that match the specified key columns and leaves all other rows unchanged.

BetaData integrationSource

Google Cloud LookerAug 5, 2026

The custom calendar feature is now generally available

The custom calendar feature is now generally available.

GASource

Google Cloud LookerAug 5, 2026

The Expression Assistant is now generally available

The Expression Assistant is now generally available.

GASource

Google Cloud LookerAug 5, 2026

The Table Visualization Improvements feature is now generally available

The Table Visualization Improvements feature is now generally available. You can now use the following features for table visualizations : Pagination Show/Hide Table Headers Table Borders Cell Highlighting Conditional formatting for string fields

GABIDeveloper toolsSource

Google Cloud LookerAug 5, 2026

The Enhanced search feature is now generally available

The Enhanced search feature is now generally available.

GASource