Claude Opus 4.5 vs DeepSeek R1

Claude Opus 4.5 vs DeepSeek R1: DeepSeek R1 is cheaper by 78% on average. Claude Opus 4.5 from Azure AI Foundry (200,000-token context, reasoning, tool calls) vs. DeepSeek R1 from Azure AI Foundry (128,000-token context, reasoning). 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
0200,000
400
064,000
5,000
01,000,000
Azure AI Foundry
$3,805/mo
Input $5.00/M · Output $25.00/M
Azure AI Foundry
$945/mo
Input $1.35/M · Output $5.40/M
At this workload, DeepSeek R1 is 75% cheaper than Claude Opus 4.5 — a savings of $2,860/month ($34,315/year).
Production recipe — Agent Command Center
strategy: cost-optimized
primary:
  model: deepseek-r1
  provider: azure-ai-foundry
fallback:
  model: claude-opus-4-5
  provider: azure-ai-foundry
shadow: { sample_rate: 0.05 }   # mirror 5% of traffic to compare quality live
Claude Opus 4.5 DeepSeek R1
Input price $5.00/M $1.35/M
Output price $25.00/M $5.40/M
Context window 200,000 128,000
Max output 64,000 8,192
Function calling
Vision
Audio input
Reasoning
Prompt caching
Structured output
Pricing verified May 12, 2026 May 12, 2026
Cheaper option
~78% cheaper than Claude Opus 4.5
Larger context
200,000 tokens
More capabilities
5 of 6 capability flags advertised

Benchmark comparison

Side-by-side public benchmark scores. Greener bar = winner.

Chatbot Arena ELOgeneral
Claude Opus 4.5
1,472
DeepSeek R1
1,361
MATH-500math
Claude Opus 4.5
DeepSeek R1
97.3%
MMLUgeneral
Claude Opus 4.5
DeepSeek R1
90.8%
HumanEvalcode
Claude Opus 4.5
DeepSeek R1
89.7%
MMLU-Proreasoning
Claude Opus 4.5
DeepSeek R1
84.0%
AIME 2024math
Claude Opus 4.5
DeepSeek R1
79.8%
GPQA Diamondreasoning
Claude Opus 4.5
DeepSeek R1
71.5%
LiveCodeBenchcode
Claude Opus 4.5
DeepSeek R1
65.9%
Aider Polyglotcode
Claude Opus 4.5
DeepSeek R1
57.0%
SWE-bench Verifiedagent
Claude Opus 4.5
DeepSeek R1
49.2%