Is Llama-3.1-Nemotron-Ultra-253B-v1 or Kimi-K2.5 cheaper?

Llama-3.1-Nemotron-Ultra-253B-v1 is cheaper on output tokens ($1.80 vs $2.50 per 1M).

Which has the larger context window, Llama-3.1-Nemotron-Ultra-253B-v1 or Kimi-K2.5?

Kimi-K2.5 has the larger context window (256K tokens).

Llama-3.1-Nemotron-Ultra-253B-v1 vs Kimi-K2.5

Llama-3.1-Nemotron-Ultra-253B-v1 is cheaper on output tokens, while Kimi-K2.5 offers a larger context window. Choose Llama-3.1-Nemotron-Ultra-253B-v1 or Kimi-K2.5 based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Llama-3.1-Nemotron-Ultra-253B-v1	Kimi-K2.5
Provider	Nebius Token Factory	Nebius Token Factory
Input / 1M tokens	$0.60	$0.50
Output / 1M tokens	$1.80	$2.50
Context window	128K	256K
Parameters	—	1T
Open weights	Yes	Yes
Released	Jan 2025	Dec 2025

Llama-3.1-Nemotron-Ultra-253B-v1 details →Kimi-K2.5 details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.