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Decision facts

• DeepSeek V4 Pro 0813 is #29; Gemini 4 Argon is #1 on the same current language board.
• Index scores are 74.8 for DeepSeek V4 Pro 0813 and 88.6 for Gemini 4 Argon. Their published uncertainty intervals do not overlap, but the aggregate Index does not predict performance on every task; compare the relevant benchmark configurations before choosing.
• Both positions use Measured evidence.
• Listed output price per 1M tokens is $1.98 for DeepSeek V4 Pro 0813 and $10.00 for Gemini 4 Argon. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $2.31 for DeepSeek V4 Pro 0813 versus $9.00 for Gemini 4 Argon. DeepSeek V4 Pro 0813 costs 74.3% less in this scenario. This excludes caching, batch discounts, prompt-length tiers, tool charges and retries; verify the selected endpoint before budgeting.
• Published context is 1,048,576 tokens for DeepSeek V4 Pro 0813 and 1,048,576 for Gemini 4 Argon.
• Weight access differs: DeepSeek V4 Pro 0813 is open; Gemini 4 Argon is none.
• ModelCap currently lists 20 providers for DeepSeek V4 Pro 0813 and 2 for Gemini 4 Argon.

These are separate published fields, not a synthetic winner. ModelCap does not collapse price, access, context, and capability evidence into a hidden recommendation score.