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Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. mai-ds-r1:freeNot in the catalogueRemove
  2. Universal-3.5 ProAssemblyAIRemove
  3. Hy4 previewTencentRemove
mai-ds-r1:free vs universal-3-5-pro vs hy4-preview
Attributemai-ds-r1:freeNot in the catalogueUniversal-3.5 Prouniversal-3-5-proHy4 previewhy4-preview
Pricing
Input—— Not priced per input token$0.834 / 1M
Output—— Not priced per output token$2.50 / 1M
Cache Write (5m)—Not applicable$0.834 / 1M
Cache Write (1h)—Not applicable$0.834 / 1M
Cache Read—Not applicable$0.834 / 1M
Web Search—$0 / 1M$0 / 1M
Context
Max context—N/A1M
Max output—N/AN/A
Capabilities
Vision—NoYes
Function Calling—NoYes
JSON Mode—NoYes
Streaming—NoYes
Catalogue
Provider—AssemblyAITencent
Category—voicechat
Charge type—Pay As You GoPay As You Go
Released—2026-09-22—
Description
Summary—AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio.Tencent Hy4 Preview is a Mixture-of-Experts (MoE) model from Tencent, featuring 770B total parameters with 49B activated per token. It is designed for coding agents, complex tool-driven workflows, and professional productivity tasks that require strong planning and reliable execution. Optimized for context continuity and sustained multi-step work, Hy4 Preview is well suited for long-horizon coding, agentic automation, tool orchestration, and complex real-world workflows.