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Model

Claude 3.5 Sonnet (October 2024 upgrade)

The upgraded Claude 3.5 Sonnet, announced on 22 October 2024, raised coding and agentic scores and introduced computer use in public beta, the first such offer from a frontier AI model.

Status DeprecatedModality Text, ImageContext (K tokens) 200 Era Generative AI for everyone

License
Proprietary
Access
API, App, Enterprise
Release date
Developer
Anthropic

What it is

The upgraded Claude 3.5 Sonnet was announced on 22 October 2024. Its API ID was claude-3-5-sonnet-20241022. It kept the same price and speed as the version it replaced.[1][2]

Coding and agentic gains

On SWE-bench Verified, a benchmark built from real software problems, the score rose from 33.4% to 49.0%. Anthropic said this was higher than all publicly available models at the time.[1] Each problem asks a model to fix a real issue in a code repository. A higher score means more of those fixes succeeded.

On TAU-bench, which tests agentic tool use, the retail score improved from 62.6% to 69.2%, and the airline score from 36.0% to 46.0%.[1]

Computer use

The headline addition was computer use. Anthropic said the upgraded Sonnet was the first frontier AI model to offer computer use in public beta. Through the API, a developer can have the model look at a screen, move a cursor, click buttons and type text, much as a person would.[1]

On OSWorld, a benchmark of computer tasks, the model scored 14.9% in the screenshot-only category, where the next best system scored 7.8%. When allowed more steps, it scored 22.0%.[1]

Anthropic called computer use experimental, and said it was “at times cumbersome and error-prone”. Early adopters included Asana, Canva, Cognition, DoorDash, Replit and The Browser Company.[1]

Testing and access

The US AI Safety Institute and the UK AI Safety Institute jointly tested the model before deployment. Anthropic judged the ASL-2 Standard still appropriate for it.[1] ASL-2 is a safety level under Anthropic's Responsible Scaling Policy.

Computer use was offered through the Anthropic API, Amazon Bedrock and Google Cloud Vertex AI. The upgraded model was available to all Claude users.[1]

Place in the story

Wikipedia gives the training data as running to April 2024.[3]

Claude 3.7 Sonnet succeeded this version in February 2025. Anthropic announced the deprecation of claude-3-5-sonnet-20241022 on 13 August 2025, and it was retired on 28 October 2025.[2]

CapabilitiesLarge language modelsCodeAgents & tool use

ApplicationsEnterprise

Version history

20
  1. 2023
    • Mar 14, 2023 Claude (March 2023)

      Claude is the AI assistant Anthropic announced on 14 March 2023, its first publicly available assistant. It was built around training AI to be helpful, honest and harmless, and it started the Claude model line.

    • Jul 11, 2023 Claude 2

      Claude 2 is the second major version of Anthropic's assistant model, released on 11 July 2023 with better performance and longer responses. It was the first Claude model open to the general public.

    • Nov 21, 2023 Claude 2.1

      Claude 2.1, released on 21 November 2023, doubled the context window to 200,000 tokens and cut false statements by half compared with Claude 2.0. It added tool use and system prompts.

  2. 2024
    • Mar 4, 2024 Claude 3 Opus

      Claude 3 Opus, announced on 4 March 2024, was the most capable model in the Claude 3 family. It added vision and launched with a 200K-token context window and a Needle In A Haystack recall above 99%.

    • Mar 4, 2024 Claude 3 Sonnet

      Claude 3 Sonnet was the middle model of Anthropic's Claude 3 family, announced on 4 March 2024. It powered the free tier of claude.ai, offered a 200K-token context window, and was retired on 21 July 2025.

    • Jun 20, 2024 Claude 3.5 Sonnet

      Claude 3.5 Sonnet, released on 20 June 2024, was the first model of the Claude 3.5 family. It ran twice as fast as Claude 3 Opus at the mid-tier price and powered the new Artifacts and Projects features.

    • Oct 22, 2024 Claude 3.5 Sonnet (October 2024 upgrade) · This page

      The upgraded Claude 3.5 Sonnet, announced on 22 October 2024, raised coding and agentic scores and introduced computer use in public beta, the first such offer from a frontier AI model.

  3. 2025
    • Feb 24, 2025 Claude 3.7 Sonnet

      Claude 3.7 Sonnet, released on 24 February 2025, was described by Anthropic as the first hybrid reasoning model on the market, able to answer quickly or think step by step at length. It launched with Claude Code.

    • May 22, 2025 Claude 4 (Claude Opus 4 and Claude Sonnet 4)

      Claude Opus 4 and Claude Sonnet 4, announced on 22 May 2025, were hybrid models with extended thinking. Anthropic called Opus 4 the best coding model in the world, and Claude Code became generally available the same day.

    • Aug 5, 2025 Claude Opus 4.1

      Claude Opus 4.1, released on 5 August 2025, upgraded Claude Opus 4 for agentic tasks, real-world coding and reasoning, at the same price. Anthropic later succeeded it with Claude Opus 4.5.

    • Sep 29, 2025 Claude Sonnet 4.5

      Claude Sonnet 4.5, released on 29 September 2025, was a drop-in replacement for Sonnet 4 at the same price. Anthropic reported that it could stay focused on complex tasks for more than 30 hours.

    • Nov 24, 2025 Claude Opus 4.5

      Claude Opus 4.5, released on 24 November 2025, cost a third as much as Opus 4.1 per token and introduced an effort parameter that lets developers trade capability for time and cost. Claude Opus 4.6 succeeded it.

  4. 2026
    • Feb 5, 2026 Claude Opus 4.6

      Released on 5 February 2026, Claude Opus 4.6 was an upgrade to Anthropic's smartest model. It was the first Opus-class model with a 1M-token context window, in beta at launch, and it introduced agent teams in Claude Code.

    • Feb 17, 2026 Claude Sonnet 4.6

      Released on 17 February 2026 with a 1M-token context window in beta, Claude Sonnet 4.6 kept the price of Sonnet 4.5 and became the default model for Free and Pro users on claude.ai.

    • Apr 16, 2026 Claude Opus 4.7

      Released on 16 April 2026 at the same price as Opus 4.6, Claude Opus 4.7 added an xhigh effort level and accepted much larger images. It was the first model to test automatic blocking of high-risk cybersecurity requests.

    • May 28, 2026 Claude Opus 4.8

      Released on 28 May 2026 at the same price as Opus 4.7, Claude Opus 4.8 added a fast mode at 2.5 times the speed, with fewer unnoticed flaws in its own code. Anthropic called it a modest but tangible improvement.

    • Jun 30, 2026 Claude Sonnet 5

      Claude Sonnet 5, released on 30 June 2026, is Anthropic's most agentic Sonnet model. It can make plans, use browsers and terminals, and run autonomously, at an introductory price of $2 and $10 per million tokens.

    • Jul 24, 2026 Claude Opus 5

      Claude Opus 5, released on 24 July 2026 at $5 and $25 per million tokens, is Anthropic's most aligned model to date and its most capable generally available model for scientific research.

    • Sep 22, 2026 Claude Opus 5.5

      Claude Opus 5.5, released on 22 September 2026, is the first model in Anthropic's Claude 5.5 family. Anthropic said it performs at the level of Fable 5.1 on most work, at about 40% lower cost than Opus 5.

    • Sep 28, 2026 Claude Sonnet 5.5

      Claude Sonnet 5.5, released on 28 September 2026, is the second model in the Claude 5.5 family and Anthropic's fastest Sonnet to date. It costs $2 and $10 per million tokens, with cache reads halved in October 2026.

20241

  1. ReleaseAnthropic launches computer use with an upgraded Claude 3.5 Sonnet and Claude 3.5 Haiku

    On 22 October 2024 Anthropic announced an upgraded Claude 3.5 Sonnet, a new Claude 3.5 Haiku and computer use in public beta, which lets Claude operate a computer through screenshots, cursor movements and typing.

Developed by1

Anthropic

Successor of1

Claude 3.5 Sonnet

Succeeded by1

Claude 3.7 Sonnet

Powers1

Claude apps (claude.ai)

Uses2

TransformerConstitutional AI

Notes and sources

  1. Introducing computer use, a new Claude 3.5 Sonnet, and Claude 3.5 Haikuhttps://www.anthropic.com/news/3-5-models-and-computer-use
  2. Model deprecationshttps://platform.claude.com/docs/en/about-claude/model-deprecations
  3. Claude (language model)https://en.wikipedia.org/wiki/Claude_(language_model)

Cite this page: Claude 3.5 Sonnet (October 2024 upgrade). TellWorld, https://www.tellworld.net/models/claude-3-5-sonnet-new. Updated 2026-11-08