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  1. Muse Spark OpenMetaRemove
  2. DeepSeek V4.1 Flash 1017DeepSeekRemove
muse-spark-open vs deepseek-v4.1-flash-1017
AttributeMuse Spark Openmuse-spark-openDeepSeek V4.1 Flash 1017deepseek-v4.1-flash-1017
Pricing
Input$1.25 / 1M$0.10 / 1M
Output$4.25 / 1M$0.50 / 1M
Cache Write (5m)$1.25 / 1M$0.10 / 1M
Cache Write (1h)$1.25 / 1M$0.10 / 1M
Cache Read$1.25 / 1M$0.10 / 1M
Web Search$0 / 1M$0 / 1M
Context
Max context1M1M
Max outputN/AN/A
Capabilities
VisionYesYes
Function CallingYesYes
JSON ModeYesYes
StreamingYesYes
Catalogue
ProviderMetaDeepSeek
Categorychatchat
Charge typePay As You GoPay As You Go
Released——
Description
SummaryMuse Spark Open is an open-weight, coding-optimized model designed for agentic software engineering workflows. It delivers strong first-attempt accuracy, reliable tool calling, and deep codebase understanding, enabling effective development across real-world repositories. Optimized for autonomous coding agents, complex code navigation, and tool-driven development, Muse Spark Open is well suited for software engineering automation, debugging, code generation, and multi-step coding workflows where accuracy and reliable execution are essential.DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek’s cost-efficient Mixture-of-Experts (MoE) model, built on its innovative Causal Encoder-Decoder (CED) architecture. Featuring 552B total parameters with 8B activated for input and 16B for output, it combines efficient inference with native multimodal understanding through jointly trained text and visual representations. Optimized for coding, terminal and computer-use agents, and long-horizon workflows, the model introduces compressed KV caching that reduces cache memory usage to approximately one-quarter of the previous Flash generation. DeepSeek reports that it surpasses V4 Pro in performance, inference speed, and task completion time, making it well suited for cost-efficient autonomous agents, complex software engineering, and long-context analysis.