Alternatives to Claude Sonnet 5.5
For customer support replies, Claude Sonnet 5.5 scores 69 and costs $7.00 per 1,000 replies. Here’s what beats it on price, on quality, or on privacy.
Overall 79$4.00 / 1M
94% similarQwen3.8 MaxAlibaba (Qwen)Overall66−13
Blended / 1M$3.00−25%
Qwen3.8 Max vs Claude Sonnet 5.5Overall−13Coding−12Writing+1Support+3Value−11Context1M
93% similarOpen weightsGLM-5.3Z.aiOverall61−18
Blended / 1M$2.15−46%
GLM-5.3 vs Claude Sonnet 5.5Overall−18Coding−19Writing−4Support−2Value−15Context1M
92% similarOpen weightsKimi K3Moonshot AIOverall65−14
Blended / 1M$6.00+50%
Kimi K3 vs Claude Sonnet 5.5Overall−14Coding−13Writing−5Support+4Value−17Context1M
91% similarMuse Spark 1.3MetaOverall68−11
Blended / 1M$2.00−50%
Muse Spark 1.3 vs Claude Sonnet 5.5Overall−11Coding−12Writing−4Support+2Value−7Context1M
91% similarGPT-5.6 SolOpenAIOverall68−11
Blended / 1M$8.00+100%
GPT-5.6 Sol vs Claude Sonnet 5.5Overall−11Coding−20Writing−7Support−3Value−15Context1.1M
90% similarGPT-6.1 SolOpenAIOverall74−5
Blended / 1M$4.00±0%
GPT-6.1 Sol vs Claude Sonnet 5.5Overall−5Coding−9Writing−16Support−11Value−5Context1.1M
88% similarClaude Sonnet 5AnthropicOverall53−26
Blended / 1M$4.00±0%
Claude Sonnet 5 vs Claude Sonnet 5.5Overall−26Coding−32Writing−21Support−13Value−26Context1M
87% similarGPT-5.6 TerraOpenAIOverall60−19
Blended / 1M$4.50+13%
GPT-5.6 Terra vs Claude Sonnet 5.5Overall−19Coding−33Writing−21Support−12Value−19Context1.1M
84% similarOpen weightsDeepSeek V4 ProDeepSeekOverall53−26
Blended / 1M$1.98−50%
DeepSeek V4 Pro vs Claude Sonnet 5.5Overall−26Coding−31Writing−13Support−10Value−22Context1M
Similarity is closeness in customer support replies score and in price. Cheaper means at least 30% less for within 5 points. Scores are provisional.
Tell me when a better alternative to Claude Sonnet 5.5 appears.