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  1. Muse Spark OpenMetaRemove
  2. Qwen3.5 Plus 2026-02-15AlibabaRemove
muse-spark-open vs qwen3.5-plus-02-15
AttributeMuse Spark Openmuse-spark-openQwen3.5 Plus 2026-02-15qwen3.5-plus-02-15
Pricing
Input$1.25 / 1M$0.26 / 1M
Output$4.25 / 1M$1.56 / 1M
Cache Write (5m)$1.25 / 1M$0.26 / 1M
Cache Write (1h)$1.25 / 1M$0.26 / 1M
Cache Read$1.25 / 1M$0.26 / 1M
Web Search$0 / 1M$0 / 1M
Context
Max context1M1M
Max outputN/AN/A
Capabilities
VisionYesYes
Function CallingYesYes
JSON ModeYesYes
StreamingYesYes
Catalogue
ProviderMetaAlibaba
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.Qwen3.5 Vision-Language Plus models are part of the native multimodal Qwen3.5 series, built on a hybrid architecture that combines linear attention mechanisms with sparse Mixture-of-Experts (MoE) designs to improve inference efficiency at scale. Across a wide range of evaluations, the series demonstrates performance comparable to leading state-of-the-art models. Compared with the Qwen3 generation, the 3.5 Plus models deliver significant improvements in both pure-text reasoning and multimodal understanding, making them well suited for applications that require strong performance across language, vision, and agent-based tasks.