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Side-by-side comparison of Claude Mythos 5.1, Qwen3.8 Max
AttributeAnthropic logoClaude Mythos 5.1Qwen logoQwen3.8 Max
ProviderAnthropicAlibaba Cloud (Qwen)
Model idanthropic/claude-mythos-5-1qwen/qwen3.8-max
StatusAvailable via SafeguardAvailable via Safeguard
Input / 1M tokens$10$2
Output / 1M tokens$50$6
Price notesBase price, same as Claude Fable 5.1. Anthropic requires the organization to be verified through one of its programs before use. Cache hits $0.25/1M. Batch 50% off.International (Singapore) deployment, 0 to 1M input tokens, both modes.
Context1M1M
ParametersNot publishedNot published
Max output128,000 tokensNot published
ModalityText and imageText and image
WeightsClosedClosed
Zero data retentionNot offeredNot stated
Prompts go toAnthropic (global routing by default)Alibaba Cloud Model Studio (prices shown are for the Singapore / International deployment)
RetentionNot used for model training without express permission. Claude Mythos 5.1 is a Covered Model that requires 30-day data retention and is not available under ZDR unless Anthropic expressly authorizes itAlibaba Cloud states it never uses your data for model training, Model Studio stores data generated from model calls as required by law (no period stated)
RegionGlobal by default, US-only inference via inference_geo at 1.1x pricing (Claude 4.6 and later)Singapore (International) for these prices, other regions such as China (Beijing), Hong Kong, Frankfurt, Virginia and Tokyo have separate price lists
Price checked2026-10-102026-10-10

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