DeepSeek AI DeepSeek R1.0528 vs Moonshotai Kimi K2.5

DeepSeek AI DeepSeek R1.0528 vs Moonshotai Kimi K2.5: DeepSeek AI DeepSeek R1.0528 is cheaper by 37% on average. DeepSeek AI DeepSeek R1.0528 from Nebius (164,000-token context, reasoning, tool calls) vs. Moonshotai Kimi K2.5 from Together AI (256,000-token context, reasoning, tool calls). Use Agent Command Center to A/B both in shadow mode and pick the winner per workload.

Side-by-side cost

Live workload comparison

Same workload run through both models. The cheaper one is highlighted.

3,000
0256,000
400
0200,000
5,000
01,000,000
Nebius
$511/mo
Input $0.800/M · Output $2.40/M
Together AI
$399/mo
Input $0.500/M · Output $2.80/M
At this workload, Moonshotai Kimi K2.5 is 22% cheaper than DeepSeek AI DeepSeek R1.0528 — a savings of $113/month ($1,351/year).
Crossover: Moonshotai Kimi K2.5 is cheaper when output/input ≤ 0.75 (input-heavy workloads — RAG, retrieval). DeepSeek AI DeepSeek R1.0528 wins above (long-form generation).
Current workload ratio: 0.13 (400/3000)
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: moonshotai-kimi-k2-5
  provider: together-ai
fallback:
  model: deepseek-ai-deepseek-r1-0528
  provider: nebius
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
DeepSeek AI DeepSeek R1.0528 Moonshotai Kimi K2.5
Input price $0.800/M $0.500/M
Output price $2.40/M $2.80/M
Context window 164,000 256,000
Max output 164,000 256,000
Function calling
Vision
Audio input
Reasoning
Prompt caching
Structured output
Pricing verified May 12, 2026 May 12, 2026
Cheaper option
~37% cheaper than Moonshotai Kimi K2.5
Larger context
256,000 tokens
More capabilities
3 of 6 capability flags advertised