Skip to content

Claude Opus 5 vs DeepSeek V4.1 Flash 1017 API pricing

For a chat message (1K input, 500 output), DeepSeek V4.1 Flash 1017 costs $0.00045 per request and Claude Opus 5 costs $0.0175, so DeepSeek V4.1 Flash 1017 is about 39× cheaper.

On the overall leaderboard Claude Opus 5 ranks #7 and DeepSeek V4.1 Flash 1017 ranks #15.

Prices are the standard pay-as-you-go prices in OpenRouter's public model list, with input at the cache-miss price. Models OpenRouter does not list use the vendor's official price; those listed in CNY are converted to USD at this round's exchange rate.

Prices and rankings

USD per million tokensClaude Opus 5DeepSeek V4.1 Flash 1017
Input$5$0.15
Output$25$0.6
Cached input$0.5$0.003
ProviderAnthropicdeepseek
Release date2026-07-24—
Overall rank#7#15
Coding rank#6—
Reasoning rank#9—
Knowledge rank#15—
Professional work rank#6#14
Verified2026-10-202026-10-20
Price sourcePrice sourcePrice source

Cost per request by usage

Without cache discounts or batch pricing.

UsageClaude Opus 5DeepSeek V4.1 Flash 1017Difference
Chat message1K in / 500 out$0.0175$17.5 per 1,000$0.00045$0.45 per 1,000DeepSeek V4.1 Flash 1017 is 39× cheaper
Long document100K in / 2K out$0.55$550 per 1,000$0.0162$16.2 per 1,000DeepSeek V4.1 Flash 1017 is 34× cheaper
Agent session500K in / 50K out$3.75$3,750 per 1,000$0.1$105 per 1,000DeepSeek V4.1 Flash 1017 is 36× cheaper

More price comparisons