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Welcome to the Mixroute Api changelog page. Here you can find our latest model releases, pricing adjustments, feature updates, and other important announcements.
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🔥 Latest Updates

12/12 GPT-5.2 Series

OpenAI’s latest flagship iteration! Enhanced reasoning and coding capabilities, GDPval 70.9% matching/exceeding 14-year expert level.

12/04 SeeDream 4.5

BytePlus’s most powerful 4K image generation model! 1.2B parameters, improved text rendering, $0.035/image!

11/25 Claude Opus 4.5

Anthropic’s latest flagship model! SWE-bench 80.9% exceeding all competitors, 1/3 the price of predecessor.

11/20 Gemini 3 Pro Preview

Google’s latest multimodal AI! LMArena 1501 Elo #1, 1M context window.

📅 December 2025

🚀 GPT-5.2 Full Series Released (12/12)

OpenAI’s major year-end upgrade covering Chat, Reasoning, and Code scenarios:
  • GDPval Benchmark: Matches or exceeds 14-year expert level in 70.9% of 1,320 real-world tasks across 44 core professions
  • ARC-AGI 2 Breakthrough: Thinking version scores 52.9%, up from 17.6%
  • Professional Productivity: Significant improvements in office suite (spreadsheets/PPT/documents) and code generation
  • Pricing Unchanged: Same as GPT-5.1, maintaining high cost-effectiveness

🎨 SeeDream 4.5 Launched (12/04)

BytePlus’s latest image generation model:
  • Ultra-High Resolution: Supports 4K HD image generation
  • Parameter Upgrade: 1.2B parameters, significantly improved quality
  • Text Rendering: Greatly enhanced text rendering capability
  • Reference Images: Supports up to 10 reference images
  • Ultra-Low Price: Only $0.035/image

📅 November 2025

🚀 Claude Opus 4.5 Released (11/25)

Anthropic’s latest flagship model:
  • #1 Coding Capability: SWE-bench Verified 80.9%, exceeding all competitors
  • Major Price Reduction: 1/3 the price of previous Opus 4
  • Claude Code Support: Full support for Claude Code programming assistant
  • 200K Context: Extended context window support

🌟 Gemini 3 Pro Preview Launched (11/20)

Google’s latest multimodal AI:
  • LMArena #1: 1501 Elo score, globally ranked #1
  • 1M Context: Extended context window support
  • Multimodal King: Supports text/image/video/audio capabilities
  • Chain-of-Thought: New thinking model with complete reasoning process

🚀 GPT-5.1 Full Series Launched (11/14)

OpenAI’s latest iteration:
  • Performance Breakthrough: SWE-bench Verified 76.3%
  • Speed Leap: 2-5x faster response for simple tasks
  • Cache Innovation: Prompt cache retention extended to 24 hours
  • Tool Enhancement: New Apply_Patch and Shell tools

📅 October 2025

🎥 Sora 2 Video Generation API

OpenAI’s revolutionary video generation model:
  • Audio-Video Sync: Automatic sound effect generation
  • No Watermark: Commercial-grade output quality
  • Ultra-Low Price: Starting at $0.15/generation

⚡ Claude Haiku 4.5 Launched

High cost-performance coding model:
  • SWE-bench 73.3%: Excellent programming capability
  • 2x Speed: Significantly faster response
  • 1/3 Cost: Ultra-high cost-effectiveness

📅 September 2025

🚀 Claude Sonnet 4.5 Launched

World’s best coding model:
  • SWE-bench 77.2%: Global best coding performance
  • Full Upgrade: Significant improvements across all capabilities

🌐 Grok Web-Connected Models

Native web connectivity:
  • Grok-4-all / Grok-3-all: Native web access, no tool calls needed
  • Real-time Info: Access to latest web information

📅 August 2025

🚀 GPT-5 Full Series Launched

OpenAI’s latest flagship models:
  • Full Support: GPT-5, GPT-5-mini, etc.
  • Same Price as Official: Enjoy 20% discount

🎯 OpenAI Open Source Models

OpenAI’s first open source models:
  • gpt-oss-120b: 120B parameter open source model
  • gpt-oss-20b: 20B parameter lightweight version
  • Local Deployment: Edge computing support

This page is updated regularly. Bookmark and check back often for the latest pricing adjustments and model updates.
New models often come with special promotions at launch. Try them early for the best deals!