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DeepSeek V4.1 Flash model sees price hike, claims Opus 5 benchmark win

By PulseAugur Editorial · [1 sources] ·

DeepSeek has released V4.1 Flash 1017, a minor update to its V4 Flash model, which reportedly outperforms Anthropic's Opus 5 on the DeepSWE benchmark. However, the new model comes with a significant price increase, costing 4.3 times more per million output tokens than its predecessor. While DeepSeek claims the model's efficiency in completing tasks may offset the higher per-token cost, third-party hosts are offering lower prices. The model card indicates improvements in reasoning, coding, and agentic tasks, with a substantial jump in the Terminal-Bench 4.0 score. AI

IMPACT Sets a new benchmark for cost-performance in long-context models, potentially influencing pricing strategies across the industry.

RANK_REASON Frontier-lab model release with system card and benchmark claims. [lever_c_demoted from frontier_release: ic=1 ai=1.0]

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

DeepSeek V4.1 Flash model sees price hike, claims Opus 5 benchmark win

How we ranked this

Signal score
56 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Significant
Frontier-lab model release with system card and benchmark claims. [lever_c_demoted from frontier_release: ic=1 ai=1.0]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
model release, product
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High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
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Full methodology in our editorial standards.

COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · Alan West ·

    DeepSeek V4.1 Flash vs V4 Flash: Beats Opus 5 on DeepSWE, 4.3x the Output Price

    <p>DeepSeek V4.1 Flash 1017 came out on October 17, got more than 860 points on Hacker News, and is being called the cheap model that beats Opus 5 on DeepSWE. Before you move your agent loop off V4 Flash, look at the output price: $1.20 per million tokens at peak. V4 Flash 0731 c…

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