DeepSeek V4 Flash vs V4 Pro: Price, Vision, Concurrency
Side-by-side DeepSeek deepseek-flash and deepseek-v4-pro using the 17 September 2026 pricing page.
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Side-by-side DeepSeek deepseek-flash and deepseek-v4-pro using the 17 September 2026 pricing page.
DeepSeek API pricing as of 17 September 2026: V4.1 Flash and V4 Pro peak/off-peak rates, cached input, and context limits.
How DeepSeek’s API and free chat compare to ChatGPT when the job is writing, reviewing, and shipping code.
Compare DeepSeek and ChatGPT on product shape: free DeepSeek chat, pay-per-token DeepSeek API, and OpenAI’s ChatGPT stack—without invented prices for ChatGPT.
DeepSeek runs free consumer chat and a separate pay-per-token API with V4.1 Flash and V4 Pro as the current model names in this brief.
Compare ChatGPT and DeepSeek on the same coding paste. Consumer DeepSeek chat has been free; API rates need checking.