Llama 3.1 405B Instruct vs Mistral Medium 3.5 128B

This comparison does not currently contain a protocol-matched coding benchmark for both Llama 3.1 405B Instruct and Mistral Medium 3.5 128B, 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.

Mistral Medium 3.5 128B has the larger sourced context window. Llama 3.1 405B Instruct supports 131K and Mistral Medium 3.5 128B supports 262K.

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. Llama 3.1 405B Instruct is open weight; Mistral Medium 3.5 128B is open weight.

Llama 3.1 405B Instruct is not documented with image input; Mistral Medium 3.5 128B is documented with image input. This reflects supported input modalities, not vision quality.

Neither has a larger sourced maximum output. Llama 3.1 405B Instruct is — and Mistral Medium 3.5 128B is —.

Llama 3.1 405B Instruct: tool calling. Mistral Medium 3.5 128B: reasoning, tool calling, and image input. Feature support does not establish relative quality.

Llama 3.1 405B Instruct has 1 sourced provider route; Mistral Medium 3.5 128B has 0, 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.