Anthropic
Alternatives

Best cheaper alternatives to Claude Sonnet 4.6

Looking for a cheaper or smarter replacement for Claude Sonnet 4.6 by Anthropic? We compared every LLM model with verifiable pricing on real input/output cost, context window, intelligence and modalities. 18 options are meaningfully cheaper.

Category: LLM 200K context
Google
Gemini 1.5 Flash-8B99% CHEAPER
Google
Larger contextMore modalitiesSame category
Google
Gemini 1.5 Flash98% CHEAPER
Google
Larger contextMore modalitiesSame category
Google
Gemini 3.1 Flash-Lite Preview91% CHEAPER
Google
Larger contextMore modalitiesSame category
Google
Gemini 2.0 Flash97% CHEAPER
Google
Larger contextMore modalitiesSame category
Google
Gemini 3.1 Flash-Lite91% CHEAPER
Google
Larger contextMore modalitiesSame category
Google
Gemini 2.5 Flash86% CHEAPER
Google
Larger contextMore modalitiesSame category
OpenAI
GPT-5.4 Nano92% CHEAPER
OpenAI
Larger contextSame category
OpenAI
GPT-5 Mini95% CHEAPER
OpenAI
Larger contextSame category
OpenAI
GPT-5.295% CHEAPER
OpenAI
Larger contextSame category
OpenAI
GPT 4.1 Mini95% CHEAPER
OpenAI
Larger contextSame category
OpenAI
GPT 4.1 Nano95% CHEAPER
OpenAI
Larger contextSame category
Google
Gemini 3 Flash Preview81% CHEAPER
Google
Larger contextMore modalitiesSame category
Alibaba Cloud
Qwen2.5 14B Instruct 1M89% CHEAPER
Alibaba Cloud
Larger contextSame category
OpenAI
GPT-4o95% CHEAPER
OpenAI
More modalitiesSame category
OpenAI
GPT-4o Mini95% CHEAPER
OpenAI
More modalitiesSame category
Groq
Llama 3.1 8B Instant 128k99% CHEAPER
Groq
Same category
Mistral AI
Ministral 3 3B98% CHEAPER
Mistral AI
Same category
Together AI
Qwen3.5 9B98% CHEAPER
Together AI
Same category

Costs are normalised to a blended 1M-token workload (or per-unit price for non-token models) using each model's latest verified pricing. Models with pricing under review are excluded from recommendations.