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first_img Anthropic released Claude Fable 5.2 and Mythos 5.2, with high actual generation costs

Anthropic released Claude Fable 5.2 and the restricted version Mythos 5.2 on Monday, stating that the new model can transform a small number of instructions into runnable software, design physical objects, and address research questions that previously required a professional team. The official announcement claims that its output speed has improved by up to 30% compared to the previous generation, with Fable 5.2 scoring 49.1% in the internal FrontierCode 2 evaluation, higher than Fable 5.1's 32.4%. Both share the same underlying model, with Fable having stricter protections against dangerous biological and cybersecurity requests, while Mythos is only open to certified institutions in relevant fields.In terms of pricing, the standard API price is $8 per million input tokens and $40 per million output tokens, lower than the previous generation's $10 and $50; an optional fast mode can increase output speed by up to 2.5 times, but the rates double to $16 and $80. In comparison, Kimi 3.1 Pro is priced at $2 and $10, while the latest DeepSeek model is $0.6 and $1.98 during off-peak hours.AI blogger Matthew Berman's tests show that Fable 5.2 can generate playable games and a browser version of Excel. One level styled after "Gears of War" took 43 hours and 48 minutes to complete, consuming 8.63 billion tokens, with an estimated cost of $14,710 based on developer pay-per-use estimates; the Excel clone is estimated at about $11,700, and a "Fall Guys" style game ran for 71 hours, consuming over 9 billion tokens, approximately $13,000. Anthropic provides one week of Fable access for Pro users and standard Team seats, capped at half of the weekly quota, with promotional access for Pro users ending on November 16.

first_img ByteDance released Seedream 5.5, supporting hundred-wheel editing

ByteDance Seed released the new generation image creation model Seedream 5.5 on November 9. This model focuses on upgrading three capabilities: achieving pixel-level preservation in non-editing areas during multi-round editing, eliminating color shifts, and reducing detail loss and image quality degradation during continuous modifications, supporting up to 100 rounds of continuous creation around the same work; natively outputting transparent or semi-transparent images with an Alpha channel, handling contour edges and transparent areas; while also improving lighting, material, and skin texture performance, reducing excessive glossiness and overexposure, and enhancing text rendering accuracy for complex glyphs and dense small text.Evaluation shows that Seedream 5.5 has improved generation effect scores and usability in six scenarios: e-commerce, marketing, film and television, gaming, office, and fashion design compared to Seedream 5.0 Pro, with the usability in film and office scenarios exceeding twice that of the previous version. The specialized evaluation for text structure and realism uses GSB scoring, covering text-to-image and image-to-image, with positive preferences in all four comparisons compared to the previous generation, and the realism image-to-image GSB is +55.62%. Compared to GPT Image 2.5 Sunburst and Nano Banana 2.1, Seedream 5.5 performs better in text structure and text-to-image realism. In evaluations covering both Chinese and English as well as dense small text, the severe text distortion rate has dropped to 0.4%, and the slight text distortion rate has dropped to 1.7%. Currently, this model is being gradually launched on Jidream, Doubao, Doubao Work, and Volcano Ark, with a Pro version to be released later.
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