Compare DeepSeek V4 Flash from DeepSeek and Solar Pro4 from Upstage on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
DeepSeek V4 FlashSolar Pro4DeepSeek V4 Flash 0423 is DeepSeek's efficiency-optimized Mixture-of-Experts text model, designed for fast inference and workflows requiring tool use, function calling, and structured outputs. It features 284B total parameters with 13B activated parameters and supports a 1M-token context window with cost-effective pricing.
Solar Pro 4 is Upstage's cost-efficient large language model, designed for long-horizon tasks, agentic workflows, and document-intensive office productivity. It features an extensive 524,288-token context window alongside robust reasoning and tool calling capabilities.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
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DeepSeek V4 Flash: $0.928/M output tokens; Solar Pro4: $1.2/M. Use the cost calculator above to estimate your own workload.
DeepSeek V4 Flash accepts 1,000,000 and Solar Pro4 accepts 524,288 input tokens.
DeepSeek V4 Flash accepts text input and supports tool calling, function calling and structured outputs; Solar Pro4 accepts text input and supports reasoning, tool calling and long context.
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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