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Compare models

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

  1. GPT-6 AstraOpenAIRemove
  2. Universal-3.5 ProAssemblyAIRemove
  3. mai-ds-r1:freeNot in the catalogueRemove
gpt-6-astra vs universal-3-5-pro vs mai-ds-r1:free
AttributeGPT-6 Astragpt-6-astraUniversal-3.5 Prouniversal-3-5-promai-ds-r1:freeNot in the catalogue
Pricing
Input$10.00 / 1M— Not priced per input token—
Output$50.00 / 1M— Not priced per output token—
Cache Write (5m)$10.00 / 1MNot applicable—
Cache Write (1h)$10.00 / 1MNot applicable—
Cache Read$10.00 / 1MNot applicable—
Web Search$0 / 1M$0 / 1M—
Context
Max context1MN/A—
Max outputN/AN/A—
Capabilities
VisionYesNo—
Function CallingYesNo—
JSON ModeYesNo—
StreamingYesNo—
Catalogue
ProviderOpenAIAssemblyAI—
Categorychatvoice—
Charge typePay As You GoPay As You Go—
Released—2026-09-22—
Description
SummaryGPT-6 Astra is OpenAI's flagship model for demanding end-to-end professional work, designed for advanced analysis, software engineering, deep research, scientific tasks, and document creation. It is particularly strong in long-horizon agentic workflows, including tasks that require sustained reasoning, tool orchestration, and computer and browser use, making it well suited for complex autonomous workflows and production-grade knowledge work.AssemblyAI Universal-3.5 Pro speech-to-text. Billed per second of audio.—