Alternatives to Claude Sonnet 5.5

For each task Claude Sonnet 5.5 is listed in, the highest-ranked other options of the same kind, ranked only from public benchmarks.

Chat & assistants: models

A Claude Sonnet 5.5 · Cloud · 1,475 on LMArena Text Arena (overall, style control)

Alternatives to Claude Sonnet 5.5 for chat & assistants
Tier	Name	Approach	Runs	Rated by	Price	Skill	Compare
S	Gemini 4 Argon Google	Models	Cloud	1,524 on LMArena Text Arena (overall, style control)	$4/M tokens	—	vs Claude Sonnet 5.5
S	Muse Wonder Meta	Models	Cloud	1,509 on LMArena Text Arena (overall, style control)	$8/M tokens	—	vs Claude Sonnet 5.5
S	Claude Opus 5.5 Anthropic	Models	Cloud	1,508 on LMArena Text Arena (overall, style control)	$8/M tokens	—	vs Claude Sonnet 5.5
S	Claude Fable 5.1 Anthropic	Models	Cloud	1,502 on LMArena Text Arena (overall, style control)	$20/M tokens	—	vs Claude Sonnet 5.5
S	Gemini 3.8 Flash Google	Models	Cloud	1,496 on LMArena Text Arena (overall, style control)	$1.5/M tokens	—
S	Muse Spark 1.3 Meta	Models	Cloud	1,494 on LMArena Text Arena (overall, style control)	$2/M tokens	—
S	Gemini 3.1 Pro (Preview) Google	Models	Cloud	1,487 on LMArena Text Arena (overall, style control)	$4.5/M tokens	—
S	Kimi K3 Moonshot AI	Models	Local	1,487 on LMArena Text Arena (overall, style control)	~1600 GB VRAM	—

A Claude Sonnet 5.5 · Cloud · 1,465 on LMArena Text Arena: Creative Writing (style control)

Alternatives to Claude Sonnet 5.5 for writing
Tier	Name	Approach	Runs	Rated by	Price	Skill	Compare
S	Claude Opus 5.5 Anthropic	Models	Cloud	1,519 on LMArena Text Arena: Creative Writing (style control)	$8/M tokens	—	vs Claude Sonnet 5.5
S	Gemini 4 Argon Google	Models	Cloud	1,516 on LMArena Text Arena: Creative Writing (style control)	$4/M tokens	—	vs Claude Sonnet 5.5
S	Gemini 3.8 Flash Google	Models	Cloud	1,487 on LMArena Text Arena: Creative Writing (style control)	$1.5/M tokens	—
S	Muse Wonder Meta	Models	Cloud	1,485 on LMArena Text Arena: Creative Writing (style control)	$8/M tokens	—	vs Claude Sonnet 5.5
S	Claude Fable 5.1 Anthropic	Models	Cloud	1,485 on LMArena Text Arena: Creative Writing (style control)	$20/M tokens	—	vs Claude Sonnet 5.5
S	Gemini 3.1 Pro (Preview) Google	Models	Cloud	1,481 on LMArena Text Arena: Creative Writing (style control)	$4.5/M tokens	—
A	Qwen3.8-Max Alibaba (Qwen)	Models	Cloud	1,469 on LMArena Text Arena: Creative Writing (style control)	$3/M tokens	—
A	Kimi K3 Moonshot AI	Models	Local	1,461 on LMArena Text Arena: Creative Writing (style control)	~1600 GB VRAM	—

S Claude Sonnet 5.5 · Cloud · 1,768 on LMArena WebDev / Code Arena (overall)

Alternatives to Claude Sonnet 5.5 for coding
Tier	Name	Approach	Runs	Rated by	Price	Skill	Compare
S	Claude Opus 5.5 Anthropic	Models	Cloud	1,806 on LMArena WebDev / Code Arena (overall)	$8/M tokens	—	vs Claude Sonnet 5.5
S	GPT-6 Astra OpenAI	Models	Cloud	1,776 on LMArena WebDev / Code Arena (overall)	$20/M tokens	—	vs Claude Sonnet 5.5
A	GPT-6.1 Sol OpenAI	Models	Cloud	1,754 on LMArena WebDev / Code Arena (overall)	$4/M tokens	—	vs Claude Sonnet 5.5
A	Claude Fable 5.1 Anthropic	Models	Cloud	1,742 on LMArena WebDev / Code Arena (overall)	$20/M tokens	—	vs Claude Sonnet 5.5
B	Gemini 4 Argon Google	Models	Cloud	1,678 on LMArena WebDev / Code Arena (overall)	$4/M tokens	—	vs Claude Sonnet 5.5
B	Qwen3.8-Max Alibaba (Qwen)	Models	Cloud	1,674 on LMArena WebDev / Code Arena (overall)	$3/M tokens	—
B	DeepSeek-V4.1-Flash-1017 DeepSeek	Models	Local	1,670 on LMArena WebDev / Code Arena (overall)	~320 GB VRAM	—
B	Muse Spark 1.3 Meta	Models	Cloud	1,659 on LMArena WebDev / Code Arena (overall)	$2/M tokens	—

A Claude Sonnet 5.5 · Cloud · 1,266 on LMArena Vision Arena (overall, style control)

Alternatives to Claude Sonnet 5.5 for image understanding
Tier	Name	Approach	Runs	Rated by	Price	Skill	Compare
S	Qwen3.8-Max Alibaba (Qwen)	Models	Cloud	1,301 on LMArena Vision Arena (overall, style control)	$3/M tokens	—
S	GPT-6.1 Sol OpenAI	Models	Cloud	1,294 on LMArena Vision Arena (overall, style control)	$4/M tokens	—	vs Claude Sonnet 5.5
S	Claude Opus 5.5 Anthropic	Models	Cloud	1,293 on LMArena Vision Arena (overall, style control)	$8/M tokens	—	vs Claude Sonnet 5.5
S	Muse Spark 1.3 Meta	Models	Cloud	1,290 on LMArena Vision Arena (overall, style control)	$2/M tokens	—
S	Gemini 3.8 Flash Google	Models	Cloud	1,289 on LMArena Vision Arena (overall, style control)	$1.5/M tokens	—
S	Claude Fable 5.1 Anthropic	Models	Cloud	1,286 on LMArena Vision Arena (overall, style control)	$20/M tokens	—	vs Claude Sonnet 5.5
S	GPT-6 Astra OpenAI	Models	Cloud	1,286 on LMArena Vision Arena (overall, style control)	$20/M tokens	—	vs Claude Sonnet 5.5
S	Gemini 3.1 Pro (Preview) Google	Models	Cloud	1,280 on LMArena Vision Arena (overall, style control)	$4.5/M tokens	—

A Claude Sonnet 5.5 · Cloud · 71.8% on AutomationBench-AA (Artificial Analysis)

Alternatives to Claude Sonnet 5.5 for workflow automation
Tier	Name	Approach	Runs	Rated by	Price	Skill	Compare
S	Gemini 4 Argon Google	Models	Cloud	77.5% on AutomationBench-AA (Artificial Analysis)	$4/M tokens	—	vs Claude Sonnet 5.5
A	Muse Wonder Meta	Models	Cloud	71.3% on AutomationBench-AA (Artificial Analysis)	$8/M tokens	—	vs Claude Sonnet 5.5
A	Claude Opus 5.5 Anthropic	Models	Cloud	69.5% on AutomationBench-AA (Artificial Analysis)	$8/M tokens	—	vs Claude Sonnet 5.5
A	GPT-6 Astra OpenAI	Models	Cloud	68.5% on AutomationBench-AA (Artificial Analysis)	$20/M tokens	—	vs Claude Sonnet 5.5
B	DeepSeek-V4.1-Flash-1017 DeepSeek	Models	Local	66.6% on AutomationBench-AA (Artificial Analysis)	~320 GB VRAM	—
B	Grok 4.7 xAI	Models	Cloud	65.6% on AutomationBench-AA (Artificial Analysis)	$3/M tokens	—
B	GPT-6.1 Sol OpenAI	Models	Cloud	64.9% on AutomationBench-AA (Artificial Analysis)	$4/M tokens	—	vs Claude Sonnet 5.5
B	GLM-5.3 Z.ai	Models	Local	62.2% on AutomationBench-AA (Artificial Analysis)	~425 GB VRAM	—

Tiers come only from public benchmarks; tools without a result of their own inherit the tier of the best model they offer. How we rank.