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Start with Claude Opus 5 and DeepSeek V4 Flash Vision Exp, or choose any two current ranked language models. Compare capability evidence, price, context, provider availability, and weight access without pretending one field decides every use case.

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Current public data

Claude Opus 5 vs DeepSeek V4 Flash Vision Exp

Live dataset updated 9/9/2026, 8:46:14 PM UTC

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Factual comparison of Claude Opus 5 and DeepSeek V4 Flash Vision Exp
Field	Claude Opus 5 Anthropic	DeepSeek V4 Flash Vision Exp DeepSeek
ModelCap position	#4	#23
Index score	86.2	71.2
Evidence	Measured6 public benchmark observations across 6 boards	Estimatedpublisher-corpus-prior over 182 held-out anchors (13%); launch card against 2 resolved peers on 7 rows (87%); exceeds every named peer on 1 of 7 rows; no cross-lab optimism probe available; shrunk 2 toward the measured corpus
Input / 1M	$5.00	$0.22
Output / 1M	$25.00	$0.66
Pricing status	fresh	fresh
Context	1M	1M
Providers	5	6
Weight access	API only	Open weights

Decision facts

Claude Opus 5 is #4; DeepSeek V4 Flash Vision Exp is #23 on the same current language board.
Index scores are 86.2 for Claude Opus 5 and 71.2 for DeepSeek V4 Flash Vision Exp. Their published uncertainty intervals overlap, so the rank difference alone does not establish a reliable capability advantage for your workload.
Evidence differs: Claude Opus 5 is Measured; DeepSeek V4 Flash Vision Exp is Estimated.
Listed output price per 1M tokens is $25.00 for Claude Opus 5 and $0.66 for DeepSeek V4 Flash Vision Exp. For 1,000 requests with 2,000 input and 500 output tokens each (2M input + 0.5M output), the listed-rate estimate is $22.50 for Claude Opus 5 versus $0.77 for DeepSeek V4 Flash Vision Exp. DeepSeek V4 Flash Vision Exp costs 96.6% 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 1,000,000 tokens for Claude Opus 5 and 1,048,576 for DeepSeek V4 Flash Vision Exp.
Weight access differs: Claude Opus 5 is none; DeepSeek V4 Flash Vision Exp is open.
ModelCap currently lists 5 providers for Claude Opus 5 and 6 for DeepSeek V4 Flash Vision Exp.

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

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