Anthropic Model Updates and API IDs

Anthropic has updated its model offerings, introducing Claude Opus 4.7, Claude Sonnet 4.6, and Claude Haiku 4.5. The updates include new API IDs and aliases for these models, which may require adjustments in integration and API calls.

May 20, 2026

At a glance

Decide impact, cost movement, and the next step before reading the full diff.

Affected

Anthropic · claude-opus-4

New Launch

Cost impact

Low · 0/5

Estimated from pricing and window changes

Migration pressure

Medium · 3/5

No explicit deadline yet

Next step

Keep monitoring the official rollout

Do this first, then review field-level details

Impact summary

Use explicit levels instead of abstract charts to judge this change.

Cost

Low

Score 0/50%

Quality

Medium

Score 2/540%

Migration

Medium

Score 3/560%

Reliability

Low

Score 0/50%

Compliance

Low

Score 0/50%

The introduction of new models and updated API IDs may require code changes and testing to ensure seamless integration.

Changes

Review changed fields first, then decide whether you need full before/after values.

Before

self.__next_f.push([1,"3c:I[3294749359,[\"85958\",\"static/chunks/85958-ef1cb8318c66892a.js\",\"50916\",\"static/chunks/50916-8ee2d43fec5b0ce2.js\",\"80374\",\"static/chunks/80374-b0ef9649cb4110d1.js\",\"65587\",\"static/chunks/65587-bcb79cc8e1818dc1.js\",\"51500\",\"static/chunks/51500-dd6371e71671ecc0.js\",\"34828\",\"static/chunks/34828-4f23c64be8573479.js\",\"77268\",\"static/chunks/77268-717cb705201afe12.js\",\"78920\",\"static/chunks/78920-8610dcef5f58623c.js\",\"80368\",\"static/chunks/80368-f8d0b64fefa490e2.js\",\"52473\",\"static/chunks/52473-6717c49f62e47558.js\",\"23833\",\"static/chunks/23833-d73e74074ef7875c.js\",\"86141\",\"static/chunks/86141-6b30bc64ac7bd5ac.js\",\"1552\",\"static/chunks/1552-f6e1ebebd5d58ef7.js\",\"42236\",\"static/chunks/42236-fe26a9c9ecf55959.js\",\"2809\",\"static/chunks/2809-03b2efaee3c5e8e1.js\",\"45492\",\"static/chunks/45492-99d88b8a3ebf6e1c.js\",\"9470\",\"static/chunks/9470-ab43aad04764665f.js\",\"91411\",\"static/chunks/91411-856bc5f6e8ec23f2.js\",\"82175\",\"static/chunks/82175-7610a0b96b1c513c.js\",\"23228\",\"static/chunks/23228-90cbf41b54b26986.js\",\"21924\",\"static/chunks/21924-81cb13f6f33c8b68.js\",\"73422\",\"static/chunks/73422-341571a8214b472f.js\",\"6844\",\"static/chunks/6844-cdab1c5012b702f6.js\",\"67278\",\"static/chunks/67278-d00e04dc3b25366a.js\",\"17900\",\"static/chunks/17900-6eb35e4e4b31fc48.js\",\"46795\",\"static/chunks/46795-a3a99f6491f18bdf.js\",\"38285\",\"static/chunks/38285-7f699313cc62ef6e.js\",\"73419\",\"static/chunks/73419-460c5df5c827fb68.js\",\"57142\",\"static/chunks/57142-a5321541b5556927.js\",\"75002\",\"static/chunks/75002-50b7b134a5bc2d26.js\",\"96016\",\"static/chunks/96016-6bd9b1566eb320d9.js\",\"78588\",\"static/chunks/78588-a0751c721b726f57.js\",\"3642\",\"static/chunks/3642-571bb651c5b1e1bd.js\",\"39774\",\"static/chunks/39774-de07521f691a9a00.js\",\"63074\",\"static/chunks/63074-d3478f332431dbc7.js\",\"3827\",\"static/chunks/3827-b527b204db059bd3.js\",\"91612\",\"static/chunks/91612-916dfacf1045fc60.js\",\"93326\",\"static/chunks/93326-6b8ad205f9be921e

After

Cookie settings
We use cookies to deliver and improve our services, analyze site usage, and if you agree, to customize or personalize your experience and market our services to you. You can read our Cookie Policy  here .
Customize  Customize Cookie Settings     Reject  Reject All Cookies    Accept  Accept All Cookies
If you&#x27;re unsure which model to use, consider starting with  Claude Opus 4.7  for the most complex tasks. It is our most capable generally available model, with a step-change improvement in agentic coding over Claude Opus 4.6.
All current Claude models support text and image input, text output, multilingual capabilities, and vision. Models are available through the Claude API,  Claude Platform on AWS ,  Amazon Bedrock ,  Vertex AI , and  Microsoft Foundry .
Once you&#x27;ve picked a model,  learn how to make your first API call .
Feature  Claude Opus 4.7  Claude Sonnet 4.6  Claude Haiku 4.5
Description   Our most capable generally available model for complex reasoning and agentic coding  The best combination of speed and intelligence  The fastest model with near-frontier intelligence
Claude API ID    claude-opus-4-7    claude-sonnet-4-6    claude-haiku-4-5-20251001
Claude API alias    claude-opus-4-7    claude-sonnet-4-6    claude-haiku-4-5
AWS Bedrock ID    anthropic.claude-opus-4-7  3    anthropic.claude-sonnet-4-6    anthropic.claude-haiku-4-5-20251001-v1:0
Vertex AI ID    claude-opus-4-7    claude-sonnet-4-6    claude-haiku-4-5@20251001

Sources

Each source focuses on what it confirms, without repeating the whole article.

docs

Anthropic Models Docs

Cookie settings

Open

Comments

Loading comments...