Claude Sonnet 5.5 alternatives

Best Claude Sonnet 5.5 alternatives

10 models that can stand in for Claude Sonnet 5.5, ranked by benchmark score, with what each one does better.

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Current Model

Claude Sonnet 5.5

Input / 1M
$2
Output / 1M
$10
Context
1M
Intelligence
56

Quick picks

The best alternative depends on what you need

Why people switch away from Claude Sonnet 5.5, and the model that fits each reason best.

Ranked

Top Claude Sonnet 5.5 alternatives

Each model is scored against Claude Sonnet 5.5. Green means better, red means worse.

Claude Sonnet 5.5 as the baseline, then the top alternatives scored against it
Input / 1M$2Output / 1M$10Context1MIntelligence56Reference model
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Input / 1M$4+100%Output / 1M$20+100%Context1MIntelligence57.6+3%Compare
Why switch:Higher intelligence score
Input / 1M$10+400%Output / 1M$50+400%Context1MIntelligence53.4-5%Compare
Input / 1M$10+400%Output / 1M$50+400%Context1.05M+5%Intelligence52.7-6%Compare
Why switch:Larger 1.05M context
Input / 1M$2Output / 1M$10Context1.05M+5%Intelligence51.8-8%Compare
Why switch:Larger 1.05M contextNewer release
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Claude Opus 5

Anthropic

Input / 1M$5+150%Output / 1M$25+150%Context1MIntelligence50.8-9%Compare
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Input / 1M$10+400%Output / 1M$50+400%Context1MIntelligence49.6-11%Compare
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GPT-6 Sol

OpenAI

Input / 1M$2Output / 1M$10Context1.05M+5%Intelligence47.6-15%Compare
Why switch:Larger 1.05M context
Input / 1M$2Output / 1M$10Context1.05M+5%Intelligence47-16%Compare
Why switch:Larger 1.05M context
Input / 1M$2Output / 1M$6-40%Context500K-50%Intelligence46.4-17%Compare
Why switch:1.7x cheaper output
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Input / 1M$0.04-98%Output / 1M$7-30%Context1.05M+5%Intelligence44.8-20%Compare
Why switch:1.4x cheaper outputLarger 1.05M context

FAQ

Frequently asked questions

What is the best alternative to Claude Sonnet 5.5?

Claude Opus 5.5 from Anthropic ranks first, based on independent benchmark scores. It costs $20 per 1M output tokens, compared with $10 for Claude Sonnet 5.5.

Is there a cheaper alternative to Claude Sonnet 5.5?

Yes. Grok 4.7 charges $6 per 1M output tokens, versus $10 for Claude Sonnet 5.5.

Can I try Claude Sonnet 5.5 and its alternatives at the same time?

Yes. Shortcut Chat sends one prompt to several models at once, so you can compare Claude Sonnet 5.5 with any of these alternatives on your own tasks.

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Not sure which to pick? Try them all.

Send one prompt to Claude Sonnet 5.5 and its alternatives at the same time, and keep the answer you like best.