Compare DeepSeek R1 and DeepSeek v4 Flash side by side. See pricing, capabilities, context length, and performance. Use both on Krater.ai from $20/mo.
DeepSeek R1 vs DeepSeek v4 Flash: strengths, best use cases and how to run both side by side. The live page adds context windows, token pricing and more comparisons once it loads.
Run DeepSeek R1 and DeepSeek v4 Flash on the same prompt in the Krater Model Arena, then keep the winner in your workflow. One subscription covers both, from $20 a month.
Open Krater chat · DeepSeek R1 on Krater · DeepSeek v4 Flash on Krater
DeepSeek's advanced reasoning model, competitive with o1 on complex problem-solving. DeepSeek R1 uses chain-of-thought reasoning for challenging tasks.
Our tested head-to-heads run the same prompt set through both models in the Model Arena, then rank answers blind. Read the testing methodology, or browse every comparison.