DeepSeek V4 Flash Base vs Llama 3.1 405B Instruct

This comparison does not currently contain a protocol-matched coding benchmark for both DeepSeek V4 Flash Base and Llama 3.1 405B Instruct, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Neither model has a directly sourced input price in this comparison. Neither model has a directly sourced output price in this comparison.

DeepSeek V4 Flash Base has the larger sourced context window. DeepSeek V4 Flash Base supports 1,049K and Llama 3.1 405B Instruct supports 131K.

There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.

Both models have the same recorded self-hosting status: supported. DeepSeek V4 Flash Base is open weight; Llama 3.1 405B Instruct is open weight.

DeepSeek V4 Flash Base is not documented with image input; Llama 3.1 405B Instruct is not documented with image input. This reflects supported input modalities, not vision quality.

Neither has a larger sourced maximum output. DeepSeek V4 Flash Base is — and Llama 3.1 405B Instruct is —.

DeepSeek V4 Flash Base: none of these features are definitively sourced. Llama 3.1 405B Instruct: tool calling. Feature support does not establish relative quality.

DeepSeek V4 Flash Base has 0 sourced provider routes; Llama 3.1 405B Instruct has 1, so Llama 3.1 405B Instruct has broader tracked availability.

There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.