Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token context window. It is suited for long-running, complex, and asynchronous tasks that previously required frequent human check-ins.

Claude Fable 5.1 is Anthropic's frontier intelligence model designed for demanding reasoning, long-horizon agentic work, advanced software engineering, multistep research, and complex enterprise workflows. It is built for tasks that can span hours and multiple applications, with strong planning, tool orchestration, failure recovery, coding, document understanding, and vision capabilities. The model supports a 1M-token context window, adaptive reasoning that is always enabled, and up to 128K output tokens.

Claude Haiku 5.5 is Anthropic's fastest, cheapest, and most capable Haiku-class model, designed for high-volume, latency-sensitive, and cost-sensitive workloads. It is optimized for classification, extraction, routing, summarization, database queries, live customer support, browser use, subagent workflows, and lightweight coding tasks. The model supports a 1M-token context window, up to 128K output tokens, adaptive thinking with configurable effort, vision, tool use, computer use, and agentic workflows. Haiku 5.5 is particularly suited to applications requiring high throughput and low latency while retaining strong reasoning, coding, computer-use, and knowledge-work capabilities.

Claude Opus 4.6 brings Anthropic's advanced reasoning capabilities to high-stakes workflows. With full adaptive thinking support and a 1-million-token context window, it excels at complex tasks across coding, cybersecurity, financial analysis, and large-scale enterprise agents.

Claude Opus 4.7 excels in autonomous multi-step engineering and long-horizon agentic workflows. It features an Effort Control layer for self-correction and advanced visual intelligence, making it an ideal choice for software engineering, legal, and financial analyses.

Claude Opus 4.8 is a workhorse flagship model designed for high-end reasoning and long-horizon agentic coding. It offers exceptional consistency and autonomy to sustain work on complex, long-running tasks.

Claude Opus 5 is Anthropic's flagship model designed for complex agentic coding and enterprise work, delivering intelligence close to Claude Fable 5 at half the price. It features a 1M token context window, adaptive thinking, and state-of-the-art performance on coding and knowledge work evaluations. It is optimized for bounded, complex tasks

Claude Opus 5.5 is Anthropic's advanced Opus model for complex coding, long-running autonomous agents, computer use, scientific research, knowledge work, and professional workflows. It delivers substantial improvements in agentic coding, software engineering, tool use, visual reasoning, and long-horizon task execution while using fewer tokens and less compute than Opus 5. The model supports adaptive thinking with configurable reasoning effort, function and tool use, computer-use workflows, vision understanding, and long-context agentic applications.

Claude Sonnet 4.6 is Anthropic's balanced production model, offering near-Opus level intelligence at a much lower cost. It features a full upgrade across coding, computer use, long-context reasoning, agent planning, knowledge work, and design, along with an adaptive thinking capability.

Claude Sonnet 5 is the most agentic Sonnet model yet, released by Anthropic on June 30, 2026. It offers a 1M token context window and 128k max output tokens. It is designed for complex, multi-step agentic tasks like coding, tool use, and autonomous planning, achieving performance close to the more expensive Opus 4.8 model. It features adaptive thinking enabled by default and a new tokenizer that produces approximately 30% more tokens for the same text compared to Sonnet 4.6.

Claude Sonnet 5.5 is Anthropic's fast, highly capable hybrid reasoning model designed for coding, agentic workflows, computer use, knowledge work, and everyday professional tasks. It improves substantially over Sonnet 5 while generating outputs more than 30% faster and using fewer tokens to complete comparable work. The model supports configurable reasoning effort, long-running tool-driven workflows, image understanding, computer interaction, and complex multi-step execution. It is particularly suited to software engineering, iterative development, enterprise automation, document and spreadsheet creation, research, and high-volume agentic applications where a balance of capability, speed, and cost is important.

Anthropic models on OneInfer

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Anthropic model catalog

Model	Category	Input	Output	Context	Pricing
Anthropic: Claude Fable 5 777380511dd14da7ad27ea1a1ed756fd	text	text, image	text	1M	$10.000 in / $50.000 out
Anthropic: Claude Fable 5.1 ddaffab4160a49709afcfad4f7e0c526	text	text, file, image	text	1M	$10.000 in / $50.000 out
Anthropic: Claude Haiku 5.5 91d0c4b6a14c4d6295d38c45e76436f5	text	text, image	text	1M	$0.500 in / $2.500 out
Anthropic: Claude Opus 4 6 2f31ee49d6f343ebbb65bc411cbe0a78	text	text, image	text	1M	$5.000 in / $25.000 out
Anthropic: Claude Opus 4 7 0ff674944b1946e2bd8d7d4615bfdfef	text	text, image	text	1M	$5.000 in / $25.000 out
Anthropic: Claude Opus 4 8 2b93670393904a21abacc95681f0e5d9	text	text, image	text	1M	$5.000 in / $25.000 out
Anthropic: Claude Opus 5 2e79e18996cf4766a051f340c30034bf	text	text, image	text	1M	$5.000 in / $25.000 out
Anthropic: Claude Opus 5.5 076e5bc05ba8456d87a54d94c36f3546	text	text, image, file	text	1M	$4.000 in / $20.000 out
Anthropic: Claude Sonnet 4 6 84095b62689b4c6cb04f49a80e93186d	text	text, image	text	1M	$3.000 in / $15.000 out
Anthropic: Claude Sonnet 5 5e65acc478f54682b5a1353a0bfcf870	text	text, image	text	1M	$2.000 in / $10.000 out
Anthropic: Claude Sonnet 5.5 3eea4953b2c04cae914930dad7cb53fc	text	text, image, file	text	1M	$2.000 in / $10.000 out