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Alternatives to Claude Sonnet 5.5

For summarising documents cheaply, Claude Sonnet 5.5 scores 79 and costs $11.00 per 1,000 summaries. Here’s what beats it on price, on quality, or on privacy.

Overall 79$4.00 / 1M
95% similarGPT-6.1 SolOpenAI
Overall74−5
Blended / 1M$4.00±0%
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GPT-6.1 Sol vs Claude Sonnet 5.5Overall−5Coding−9Writing−16Support−11Value−5Context1.1M
93% similarMuse WonderMeta
Overall80+1
Blended / 1M$8.00+100%
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Muse Wonder vs Claude Sonnet 5.5Overall+1Coding−11Writing+7Support+10Value−3Context1M
86% similarQwen3.8 MaxAlibaba (Qwen)
Overall66−13
Blended / 1M$3.00−25%
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Qwen3.8 Max vs Claude Sonnet 5.5Overall−13Coding−12Writing+1Support+3Value−11Context1M
85% similarClaude Opus 5Anthropic
Overall86+7
Blended / 1M$10.00+150%
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Claude Opus 5 vs Claude Sonnet 5.5Overall+7Coding−3Writing+12Support+15Value+2Context1M
84% similarMuse Spark 1.3Meta
Overall68−11
Blended / 1M$2.00−50%
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Muse Spark 1.3 vs Claude Sonnet 5.5Overall−11Coding−12Writing−4Support+2Value−7Context1M
83% similarGemini 4 ArgonGoogle
Overall96+17
Blended / 1M$4.00±0%
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Gemini 4 Argon vs Claude Sonnet 5.5Overall+17Coding−3Writing+21Support+28Value+17Context1M
83% similarGemini 3.8 FlashGoogle
Overall71−8
Blended / 1M$1.50−62%
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Gemini 3.8 Flash vs Claude Sonnet 5.5Overall−8Coding−21Writing+6Support+9Value−3Context1M
83% similarGPT-5.6 SolOpenAI
Overall68−11
Blended / 1M$8.00+100%
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GPT-5.6 Sol vs Claude Sonnet 5.5Overall−11Coding−20Writing−7Support−3Value−15Context1.1M
82% similarOpen weightsKimi K3Moonshot AI
Overall65−14
Blended / 1M$6.00+50%
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Kimi K3 vs Claude Sonnet 5.5Overall−14Coding−13Writing−5Support+4Value−17Context1M

Similarity is closeness in summarising documents cheaply score and in price. Cheaper means at least 30% less for within 5 points. Scores are provisional.

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