> ## Documentation Index
> Fetch the complete documentation index at: https://docs.mixroute.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Changelog

Welcome to MixRoute's changelog page. Here you can find important information about our latest model launches, pricing adjustments, feature updates, and more.

<Tip>
  Stay updated: press Ctrl+D to bookmark this page and get the latest model launches and promotional information as soon as possible.
</Tip>

## 🔥 Latest Updates

<CardGroup cols={2}>
  <Card title="08/26 GLM-5.3 Flash" icon="bolt">
    Z.ai's first natively multimodal GLM-5 model combines 1M context with efficient coding, visual understanding, and agentic workflows.
  </Card>

  <Card title="08/14 GLM-5.3" icon="brain">
    Z.ai's new flagship reasoning model targets complex coding, long-horizon agents, and security analysis with always-on thinking.
  </Card>

  <Card title="08/13 DeepSeek V4 Pro GA" icon="code">
    DeepSeek V4 Pro reached general availability with stronger production agents, Responses API support, and low/high/max reasoning effort.
  </Card>

  <Card title="08/12 Grok 4.6" icon="rocket">
    xAI's new 500K-context flagship supports text and image input, configurable reasoning, function calling, and structured output.
  </Card>
</CardGroup>

***

## 🔧 Update Announcements

### 2026-08-26 GLM-5.3 Flash Release

Z.ai released `glm-5.3-flash`, its first natively multimodal GLM-5 model:

* 1M-token context for long coding, document, and agent workflows
* Text, image, video, and file understanding
* Efficient 320B-parameter MoE architecture with 18B active parameters
* Hybrid sparse and linear attention for lower long-context serving cost

Source: [Z.ai GLM-5.3 Flash announcement](https://z.ai/blog/glm-5.3-flash)

***

### 2026-08-14 GLM-5.3 Release

Z.ai released `glm-5.3`, a flagship always-thinking model built for complex coding and long-horizon agents:

* 1M-token context and up to 128K output
* `low`, `high`, and `max` reasoning effort; `max` is recommended for coding
* Stronger coding, autonomous execution, and security analysis than GLM-5.2
* OpenAI-compatible Chat Completions through MixRoute

Source: [Z.ai GLM-5.3 announcement](https://z.ai/blog/glm-5.3)

***

### 2026-08-13 DeepSeek V4 Pro General Availability

DeepSeek released the general-availability version of `deepseek-v4-pro`:

* Stronger production agent and coding performance
* Native OpenAI Responses API support
* `low`, `high`, and `max` reasoning effort
* 1M-token context and up to 384K output

Source: [DeepSeek V4 Pro GA announcement](https://api-docs.deepseek.com/news/news260813/)

***

### 2026-08-12 Grok 4.6 Release

xAI released `grok-4.6` for coding, agentic tasks, and knowledge work:

* 500K context window
* Text and image input with text output
* Function calling and structured output
* `low`, `medium`, `high`, and `xhigh` reasoning effort

Source: [xAI release notes](https://docs.x.ai/developers/release-notes)

***

### 2026-07-23 Moonshot Kimi K3 & New Gemini Series Launch

* **Moonshot**: New flagship model `kimi-k3` is now available, replacing `kimi-k2.6` as the new Kimi series flagship, with upgraded reasoning and multimodal capabilities
* **Google**: Added `gemini-3.6-flash`, `gemini-3.5-flash-lite` and other new models

***

### 2026-07-10 GPT 5.6 New Flagship Series Launch

OpenAI's new GPT-5.6 series is now available, introducing a new naming scheme with major breakthroughs in reasoning efficiency, frontend design, and tool calling:

* **OpenAI**: New GPT-5.6 series models launched with a new naming scheme:
  * `gpt-5.6-sol` — Flagship reasoning model, supports Pro Mode deep reasoning (`reasoning.mode: "pro"`)
  * `gpt-5.6-terra` — Cost-effective flagship, balancing performance and cost
  * `gpt-5.6-luna` — High-efficiency, high-volume, ideal for production workloads
  * New `reasoning.effort: max` highest reasoning level
  * Supports Programmatic Tool Calling, Multi-agent (beta), explicit Prompt Caching, persisted reasoning (`reasoning.context`)
  * Token efficiency significantly improved, frontier quality with fewer tokens

***

### 2026-07-01 New Upgrade to the Video and Image Model Library

We have fully introduced ByteDance's latest video and image generation models, giving you a broader range of visual creation capabilities:

* **New Volcano Engine / ByteDance models launched**:
  * Newly launched flagship **SeeDream 5.0** (`seedream-5-0-260128`) and its lightweight version **SeeDream 5.0 Lite** (`seedream-5-0-lite-260128`).
  * Added stable and practical **SeeDream 4.x-level** models, including `seedream-4-0-250828` (version 4.0) and `seedream-4-5-251128` (version 4.5).
  * Added the lightweight flagship video model **Seedance 2.0 Mini** (`dreamina-seedance-2-0-mini-260615`).
  * All newly added models are fully integrated and support high-quality output, making it easy for multilingual developers to call them flexibly across different application scenarios.
* **Anthropic**: Also launched the flagship model **Claude Sonnet 5** (`claude-sonnet-5`), with a 1M-token ultra-long context, suitable for coding, agents, and enterprise workflows.

***

### 2026-06-05 Major Upgrade to the Video Model Library

Based on the latest progress in the platform's video generation capabilities, we have fully synchronized and updated the Seedance model series:

* **ByteDance (Dreamina/Seedance)**:
  * Newly launched the latest flagship `dreamina-seedance-2-0-260128` (Seedance 2.0) and `dreamina-seedance-2-0-fast-260128` (fast version).
  * Added support for the high-quality professional version `seedance-1-5-pro-251215` (1.5 Pro).
  * Aligned and updated the 1.0 series, including `seedance-1-0-pro-250528` and `seedance-1-0-pro-fast-251015`.
  * Also upgraded the developer documentation for video task submission and querying, and added English and Traditional Chinese code examples and comparison tables to make integration easier for multilingual developers.

***

### 2026-05-27 Full Model Library Synchronization Update

Based on the latest platform API status, we have fully synchronized and updated the models supported by the platform:

* **OpenAI**: Launched the `gpt-5.5` flagship series, the `gpt-5.4` series, the reasoning model `o4-mini`, and the image model `gpt-image-2`
* **Anthropic**: Launched Anthropic model updates, including `claude-opus-4-7`, `claude-sonnet-5`, and `claude-haiku-4-5-20251001`
* **Google**: Launched the Gemini 3.1 and 3.5 series, including `gemini-3.5-flash`, `gemini-3.1-pro-preview`, and more
* **DeepSeek**: Launched the V4 series, including `deepseek-v4-pro` and `deepseek-v4-flash`
* **xAI**: Launched the Grok 4 series, including `grok-4.20-beta-0309-reasoning`, and more
* **Chinese models**: Launched key flagship models such as `qwen3.7-max`, `glm-4-plus`, and `kimi-k2.6`

***

<Note>
  Update frequency: this page is updated regularly. We recommend bookmarking it and checking back often. All pricing adjustments and model updates will be announced here as soon as possible.
</Note>

<Tip>
  Newly launched models often come with special promotions during the initial launch period, so we recommend trying them early.
</Tip>


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