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DeepSeek V4 Pro at 5% the cost of Claude – what it takes to close the gap

DeepSeek V4 Pro at 5% the cost of Claude – what it takes to close the gaphowardchen.substack.com

DeepSeek V4 Pro costs $0.435 per million input tokens vs $3 for Claude Sonnet 4, making it 5-7x cheaper. The author's Go-based harness closes the gap to ~90% of Claude's performance on actual coding tasks, though long-horizon planning and sloppy code reading remain weak points.

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Jun 16, 7:59 PM
DeepSeek V4 Pro at 5% the cost of Claude – what it takes to close the gap — AIBriefs