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GPT-5.6 Luna Pro vs DeepSeek V4 Pro
2026 Stored listed rates & illustrative token-cost comparison
Illustrative Listed-Rate Difference
GPT-5.6 Luna Pro about 58% lower
1M input + 200K output tokens; not a monthly bill
📌 Executive Summary (TL;DR):Under a standard baseline of 1M input + 200K output tokens, GPT-5.6 Luna Pro lists approximately 58% lower than DeepSeek V4 Pro. For high-throughput production workloads, GPT-5.6 Luna Pro delivers superior unit economics; model your specific monthly workload below before migrating.
💡 10M Monthly Token Workload Simulation
Simulating a production workload (10M input + 2M output tokens): GPT-5.6 Luna Pro listed rate totals ~$4.40, while DeepSeek V4 Pro totals ~$10.56. Switching to GPT-5.6 Luna Pro yields ~$6.16/mo in raw token savings.
Metric
GPT-5.6 Luna Pro (openrouter)
DeepSeek V4 Pro (DeepSeek)
Input listed rate
$0.20 / 1M Tokens
$0.66 / 1M Tokens
Output listed rate
$1.20 / 1M Tokens
$1.98 / 1M Tokens
Cached Input rate
$0.02 / 1M Tokens
$0.02 / 1M Tokens
Context Window
1050K Tokens
1000K Tokens
Modality
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