Anthropic
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Current state
As of Sep 6, 2026Anthropic offers free, Pro, Max, Team, and Enterprise Claude plans plus pay-as-you-go API token pricing (e.g., Sonnet 5 at $2/$10 per MTok input/output). Individual plans range from $0 (Free) to $17–$20/month (Pro) and From $100/month (Max), while Team seats run $20–$125/month depending on tier and billing cycle; Enterprise is $20/seat plus usage at API rates.
| Plan | Price | Includes |
|---|---|---|
| Free | $0 | Chat on web, iOS, Android, desktop · Web search · Memory across conversations · Create files and execute code · Extended thinking |
| Pro | $17 per month / month | Includes Claude Code, Cowork, Design, Science · Unlimited projects · Access to more Claude models · Claude for Microsoft 365 |
| Max | From $100 per month / month | 5x or 20x more usage than Pro · Higher output limits · Early access to advanced features · Priority access at high traffic times |
| Team – Standard seat | $20 per seat/month / month | All Claude features · More usage than Pro · For teams of 2 to 150 |
| Team – Premium seat | $100 per seat/month / month | 5x more usage than Standard seats · Includes Claude Code, Cowork, Design, Science · Central billing and administration · SSO |
| Enterprise | $20 per seat / month | Usage billed at API rates · Admins set user/org spend limits · SCIM, audit logs, compliance API · HIPAA-ready offering available |
| Education | — | University-wide plan for students, faculty, staff · Dedicated API credits · Training and enablement resources |
Free tier $0 – Free for everyone; includes web/iOS/Android/desktop chat, web search, memory, and basic Claude capabilities.
Changes
- ChangePricing
Removed 'Access to Research' from Pro plan features; restructured pricing page layout and FAQ navigation.
* Access to Research * Ability to use more Claude models* Ability to use more Claude modelsConfidence95% - ChangePricing
Anthropic removed the 'Non-standard terms' and 'MSA' rows from the Team/Enterprise partnership comparison table, indicating those billing-term options are no longer listed as differentiators across plans.
TIERED INCENTIVES ON COMMITTED SPEND TRIALS NON-STANDARD TERMS CUSTOMER SUCCESS SUPPORT AT CERTAIN SPEND THRESHOLDS MSATIERED INCENTIVES ON COMMITTED SPEND TRIALS CUSTOMER SUCCESS SUPPORT AT CERTAIN SPEND THRESHOLDSConfidence70%
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Current state
As of Sep 6, 2026This changelog tracks updates to Anthropic's Claude API, SDKs, and Console, with the most recent entries covering the launch of Claude Fable 5.1 and Claude Mythos 5.1, new ant CLI capabilities, and general availability of previously beta features like the Files API, Agent Skills, and computer/browser use tools. Recent changes emphasize agentic tooling, SDK stabilization (Python SDK v1.0), and expanded Admin/Compliance API access.
Deprecations
- Sunset 2025-10-28
Claude Sonnet 3.5 models (claude-3-5-sonnet-20240620 and claude-3-5-sonnet-20241022)
→ Claude Sonnet 4.5 (claude-sonnet-4-5-20250929)
- No date
Claude Opus 3 model
- Sunset 2025-07-21
Claude 2.0, Claude 2.1, and Claude Sonnet 3 models
- Sunset 2024-11-06
Claude 1 and Instant models
- Sunset 2024-10-08
Build and Scale plans
→ standard feature suite (formerly Build)
Latest entries
- Ant CLI 1.30.0 adds ant apply for managing resources as codeaddition
- Claude Fable 5.1 and Claude Mythos 5.1 launch with 1M token context and adaptive thinkingaddition
- SDKs drop beta headers for files and skills clients across six languageschange
- Personal keys and service account keys can now be created in the Claude Consoleaddition
- Compliance API session endpoints exit beta for Cowork and Claude Code sessionschange
- Admin API becomes available in the ant CLI and seven SDKsaddition
- Python SDK v1.0 released with httpx2 and removal of legacy Text Completions APIbreaking
- Computer use and browser use toolsets become available on Google Cloudaddition
- Computer use tool exits beta as computer_toolset_20260801change
- Browser use tool launches for client-hosted browser controladdition
- Files API exits beta on the Claude APIchange
- Agent Skills and Skills API exit betachange
Changes
- ChangeAPI changelog
Claude Fable 5.1 and Claude Mythos 5.1 launched with breaking changes: tool_choice types 'any' and 'tool' no longer supported (return 400 error), thinking block compatibility restrictions, and prompt cache read pricing reduced to $0.25/MTok; anthropic-version header now required for Admin API, Analytics API, and Compliance API endpoints.
AUGUST 27, 2026 * In Python SDK 1.2.0, TypeScript SDK 0.122.0, Go SDK 1.68.0, Java SDK 2.59.0, Ruby SDK 1.67.0, and C# SDK 12.44.0, client.beta.files and client.beta.skills no longer send the files-api-2025-04-14 and skills-2025-10-02 beta headers...SEPTEMBER 3, 2026 * Version 1.30.0 of the ant CLI adds ant apply... SEPTEMBER 1, 2026 * We've launched Claude Fable 5.1 (claude-fable-5-1)... * On Claude Fable 5.1 and Claude Mythos 5.1, tool_choice types any and tool aren't supported and return a 400 error. auto and none are unchanged... * Thinking blocks produced by Claude Fable 5.1 and Claude Mythos 5.1 are preserved only for the model that produced them or a newer one... * The guides for the Claude Enterprise endpoints of the Admin API (user management and spend limits), the Claude Enterprise Analytics API, and the Compliance API now show the anthropic-version header; send it on every request to these endpoints...Confidence95% - ChangeAPI changelog
New August 27, 2026 changelog entry documents SDK changes removing beta headers for Files API and Skills API with breaking changes including renamed types and modified delete behavior, plus new personal/service account API key support.
AUGUST 26, 2026 * The Compliance API session endpoints are out of beta for Cowork and Claude Code sessions.AUGUST 27, 2026 * In Python SDK 1.2.0, TypeScript SDK 0.122.0, Go SDK 1.68.0, Java SDK 2.59.0, Ruby SDK 1.67.0, and C# SDK 12.44.0, client.beta.files and client.beta.skills no longer send the files-api-2025-04-14 and skills-2025-10-02 beta headers and return the same shapes as client.files and client.skills. With this change, client.beta.skills.delete() deletes a Skill together with all of its versions, and the beta Messages type BetaSkill (the container Skill reference) is renamed BetaContainerSkill. Requests that still send the beta headers keep receiving the beta shapes. See Migrate from files-api-2025-04-14 and Migrate from skills-2025-10-02. * You can now create personal keys and service account keys in the Claude Console. They act as you or as a service account, with the same permissions, and stop working when the linked account is removed from an organization. This lets organization admins more easily track usage for each account, and ensure key usage is legitimate. These API keys can be scoped to a specific workspace or work on admin endpoints and across any workspace the account has access to. Workspace API keys remain supported as a legacy option. See API keys for more information. AUGUST 26, 2026 * The Compliance API session endpoints are out of beta for Cowork and Claude Code sessions.Confidence95% - ChangeAPI changelog
Anthropic added new Compliance API beta features, Admin API SDK support, and computer/browser use toolsets on Google Cloud; Python SDK v1.0 removes deprecated parameters and changes async response handling.
AUGUST 20, 2026 * We've released v1.0 of the Python SDK. The SDK's HTTP layer moves from httpx to httpx2, a maintained, API-compatible fork: build custom http_client, Timeout, and transport objects from httpx2 (the DefaultHttpxClient helpers are unchanged), and call httpx2.alias_httpx() at startup if you rely on tracing or mocking libraries that patch httpx. v1.0 requires Python 3.10 or later and removes long-deprecated surface, including the legacy Text Completions API, the temperature, top_p, and top_k parameters on Messages methods, and the tool runner's client-side compaction_control. On the async client, .with_raw_response results now need await response.parse(), and AnthropicBedrock now raises an error when no AWS region is configured instead of defaulting to us-east-1. See the v1 migration guide for every change with before-and-after snippets.AUGUST 26, 2026 * The Compliance API session endpoints are out of beta for Cowork and Claude Code sessions. See Retrieve session transcripts. * The Compliance API local session endpoints now also return transcripts of Claude Science sessions (product_surface value claude_science) and Claude for Microsoft 365 sessions in Excel, PowerPoint, Word, and Outlook (product_surface values beginning with office_agents), in beta for Claude Enterprise organizations, with your existing Compliance Access Key and the read:compliance_user_data scope. See Sessions on users' machines. * The Admin API is now available in the ant CLI and the Python, TypeScript, C#, Go, Java, PHP, and Ruby SDKs under client.beta.organization. They cover organization info, members, invites, workspaces and workspace members, API keys, rate limits, service accounts, workload identity federation issuers and rules, and customer-managed encryption keys. Usage and cost reports and the Claude Enterprise user-management and analytics endpoints remain curl-only. The CLI and SDKs read an Admin API key from ANTHROPIC_API_KEY or an org:admin OAuth token from ANTHROPIC_AUTH_TOKEN. AUGUST 20, 2026 * We've released v1.0 of the Python SDK. The SDK's HTTP layer moves from httpx to httpx2, a maintained, API-compatible fork: build custom http_client, Timeout, and transport objects from httpx2 (the DefaultHttpxClient helpers are unchanged), and call httpx2.alias_httpx() at startup if you rely on tracing or mocking libraries that patch httpx. v1.0 requires Python 3.10 or later and removes long-deprecated surface, including the legacy Text Completions API, the temperature, top_p, and top_k parameters on Messages methods, and the tool runner's client-side compaction_control. On the async client, .with_raw_response results now need await response.parse(), and AnthropicBedrock now raises an error when no AWS region is configured instead of defaulting to us-east-1. See the v1 migration guide for every change with before-and-after snippets. * The computer use and browser use toolsets (computer_toolset_20260801 and browser_toolset_20260801) are now available on Google Cloud for Claude Fable 5, Claude Mythos 5, Claude Opus 5, Claude Sonnet 5, and Claude Opus 4.8. Requests use the same tools entries as on the Claude API.Confidence95% - ChangeAPI changelog
Removed 'System prompts' from the navigation menu.
OverviewSystem promptsOverviewConfidence30% - ChangeAPI changelog
Python SDK v1.0 released with breaking changes including removal of deprecated APIs, httpx to httpx2 migration, Python 3.10+ requirement, and async client changes; multiple features transitioned from beta to GA with language standardization updates.
AUGUST 19, 2026 * The computer use tool is now generally available on the Claude API as the computer_toolset_20260801 toolset... * The Files API is now generally available on the Claude API... * Agent Skills and the Skills API (/v1/skills) are now generally available on the Claude API...AUGUST 20, 2026 * We've released v1.0 of the Python SDK. The SDK's HTTP layer moves from httpx to httpx2, a maintained, API-compatible fork... v1.0 requires Python 3.10 or later and removes long-deprecated surface, including the legacy Text Completions API, the temperature, top_p, and top_k parameters on Messages methods, and the tool runner's client-side compaction_control. On the async client, .with_raw_response results now need await response.parse(), and AnthropicBedrock now raises an error when no AWS region is configured instead of defaulting to us-east-1. AUGUST 19, 2026 * The computer use tool is out of beta on the Claude API as the computer_toolset_20260801 toolset... * The Files API is out of beta on the Claude API... * Agent Skills and the Skills API (/v1/skills) are out of beta on the Claude API...Confidence95% - ChangeAPI changelog
Multiple API changes: computer use tool and browser use tool now GA (no beta header required); Files API GA removes files-api-2025-04-14 beta header requirement; storage and rate limit details removed; Admin API user-management endpoints GA removes ce-user-management-2026-07-13 header requirement; new toolset versions and model support announced.
* The Admin API user-management endpoints for Claude Enterprise (claude.ai) organizations (members, invites, groups, and custom roles) are now generally available. The anthropic-beta: ce-user-management-2026-07-13 header is no longer required on group and custom-role requests; requests that still send it are accepted unchanged. See User management. * The Files API is now generally available on the Claude API. Requests to the /v1/files endpoints, and Messages API requests that reference an uploaded file, no longer require the files-api-2025-04-14 beta header. Requests sent without the header use the GA response format: file expiration (set expires_in_seconds when you upload a file; file objects report expires_at), and page and next_page pagination plus an ids[] filter when you list files. Storage is 1 TB per organization and the rate limit is 500 requests per minute. /v1/files requests that still send the beta header keep working and return the previous response format.* The computer use tool is now generally available on the Claude API as the computer_toolset_20260801 toolset: no beta header, batch actions (several actions in one turn), zoom enabled by default, and per-member configuration through configs. Earlier beta versions remain available. Upgrading an existing integration changes the request shape and tool handling; see Migrate from computer_20251124. * We've launched the browser use tool (browser_toolset_20260801), a client toolset for driving a browser that your application hosts. It works inside a browser viewport rather than a whole desktop, reading the page itself (its accessibility tree, elements, forms, and tabs) and adding element references, form input, tab management, download reporting, and opt-in file upload on top of screenshot-and-click control. * Both toolsets are available for Claude Fable 5, Claude Mythos 5, Claude Opus 5, Claude Sonnet 5, and Claude Opus 4.8 on the Claude API. * The Files API is now generally available on the Claude API. Requests to the /v1/files endpoints, and Messages API requests that reference an uploaded file, no longer require the files-api-2025-04-14 beta header. Requests sent without the header use the GA response format: file expiration (set expires_in_seconds when you upload a file; file objects report expires_at), and page and next_page pagination plus an ids[] filter when you list files. /v1/files requests that still send the beta header keep working and return the previous response format. * Agent Skills and the Skills API (/v1/skills) are now generally available on the Claude API. Requests no longer require the skills-2025-10-02 beta header, including Messages API requests that load Skills through the container parameter. Requests that still send the header continue to work unchanged. See Using Agent Skills with the API. * The Admin API user-management endpoints for Claude Enterprise (claude.ai) organizations (members, invites, groups, and custom roles) are now generally available. The anthropic-beta: ce-user-management-2026-07-13 header is no longer required on group and custom-role requests; requests that still send it are accepted unchanged. See User management.Confidence95% - ChangeAPI changelog
Anthropic added an Aug 19, 2026 entry: Files API and Skills API (skills-2025-10-02) reached GA (beta headers no longer required, old ones still accepted), and Admin API user-management (ce-user-management-2026-07-13) beta header is no longer required for group/custom-role requests.
AUGUST 18, 2026 * Workbench is now Playground in the Claude Console...AUGUST 19, 2026 * The Admin API user-management endpoints... are now generally available. The anthropic-beta: ce-user-management-2026-07-13 header is no longer required... * The Files API is now generally available... no longer require the files-api-2025-04-14 beta header... * Agent Skills and the Skills API (/v1/skills) are now generally available... no longer require the skills-2025-10-02 beta header...Confidence98% - ChangeAPI changelog
Anthropic renamed the Workbench to Playground in the Claude Console, effectively finalizing the Workbench sunset that was scheduled for August 17, 2026.
The legacy Workbench (platform.claude.com/workbench) in the Claude Console is being sunset with access ending on August 17, 2026...AUGUST 18, 2026 - Workbench is now Playground in the Claude Console. Playground supports every Messages API parameter and includes templates that demonstrate API features such as code execution and web search...Confidence85%
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