Changelog (34)

Last updated Apr 21, 2026

2026-06-16

GLM-5.2 now available on Workers AI

  • @cf/zai-org/glm-5.2 is now available on Workers AI. Z.ai's flagship agentic coding model with a 262,144 token context window, function calling, and reasoning support. Read changelog to get started.

2026-06-12

Moonshot AI Kimi K2.7 Code now available on Workers AI

  • @cf/moonshotai/kimi-k2.7-code now available on Workers AI. A frontier-scale 1T parameter MoE model optimized for coding, with a 262.1k context window, vision, multi-turn tool calling, and reasoning. Read changelog to get started.

2026-05-08

Planned model deprecations

  • We are refreshing the Workers AI model catalog to make room for newer releases. Please update your apps to remove references to the models listed below before the deprecation date. Refer to the changelog for full details.
  • We recommend migrating to newer models such as @cf/zai-org/glm-4.7-flash for fast tool-calling, @cf/google/gemma-4-26b-a4b-it for an efficient open model, or @cf/moonshotai/kimi-k2.6 for a capable tool-calling and vision model.
  • On May 30, 2026, requests to @cf/moonshotai/kimi-k2.5 will be automatically aliased to @cf/moonshotai/kimi-k2.6, which has a higher price. The deprecation date was extended from May 10, 2026. Please review the K2.6 pricing and model capabilities prior to May 30, 2026.
  • On May 30, 2026, the following models will be deprecated:
  • @cf/moonshotai/kimi-k2.5 --> @cf/moonshotai/kimi-k2.6
  • @hf/meta-llama/meta-llama-3-8b-instruct
  • @cf/meta/llama-3-8b-instruct
  • @cf/meta/llama-3-8b-instruct-awq
  • @cf/meta/llama-3.1-8b-instruct
  • @cf/meta/llama-3.1-8b-instruct-awq
  • @cf/meta/llama-3.1-70b-instruct
  • @cf/meta/llama-2-7b-chat-int8
  • @cf/meta/llama-2-7b-chat-fp16
  • @cf/mistral/mistral-7b-instruct-v0.1
  • @hf/mistral/mistral-7b-instruct-v0.2
  • @hf/google/gemma-7b-it
  • @cf/google/gemma-3-12b-it
  • @hf/nousresearch/hermes-2-pro-mistral-7b
  • @cf/microsoft/phi-2
  • @cf/defog/sqlcoder-7b-2
  • @cf/unum/uform-gen2-qwen-500m
  • @cf/facebook/bart-large-cnn
  • The -fast and -lora variants of models will remain active. LoRA models may be deprecated in the future, and we will communicate when new LoRA models come online to give users time to train new LoRAs before we deprecate old ones.

2026-04-20

Moonshot AI Kimi K2.6 now available on Workers AI

  • @cf/moonshotai/kimi-k2.6 now available on Workers AI. The latest frontier-scale model from Moonshot AI with improved reasoning, coding, and agentic capabilities. Read changelog to get started.
  • K2.6 uses the chat_template_kwargs.thinking parameter to control reasoning (instead of chat_template_kwargs.enable_thinking) and returns reasoning content in the reasoning field (instead of reasoning_content).

2026-04-04

Google Gemma 4 26B A4B now available on Workers AI

  • @cf/google/gemma-4-26b-a4b-it now available on Workers AI. A Mixture-of-Experts model with 26B total parameters and 4B active, featuring a 256K context window, vision, built-in thinking mode, and function calling. Read changelog to get started.

2026-03-19

Moonshot AI Kimi K2.5 now available on Workers AI

  • @cf/moonshotai/kimi-k2.5 now available on Workers AI. A frontier-scale open-source model with a 256k context window, multi-turn tool calling, vision inputs, and structured outputs for agentic workloads. Read changelog to get started.
  • New Prompt caching documentation. Send the x-session-affinity header to route requests to the same model instance and maximize prefix cache hit rates across multi-turn conversations.
  • Redesigned Asynchronous Batch API with a pull-based system that processes queued requests as capacity becomes available, avoiding out-of-capacity errors for durable workflows.

2026-03-11

NVIDIA Nemotron 3 Super now available on Workers AI

  • @cf/nvidia/nemotron-3-120b-a12b now available on Workers AI! A hybrid MoE model with 120B total parameters and 12B active, optimized for multi-agent and agentic AI workloads. Read changelog to get started.

2026-03-06

Deepgram Nova-3 now supports 10 languages with regional variants

  • @cf/deepgram/nova-3 now supports 10 languages with regional variants for real-time transcription. Supported languages include English, Spanish, French, German, Hindi, Russian, Portuguese, Japanese, Italian, and Dutch — with regional variants like en-GB, fr-CA, and pt-BR.

2026-02-17

Chat Completions API support for gpt-oss models and tool calling improvements

  • @cf/openai/gpt-oss-120b and @cf/openai/gpt-oss-20b now support Chat Completions API format. Use /v1/chat/completions with a messages array, or use /ai/run which dynamically detects your input format and accepts Chat Completions ( messages), legacy Completions ( prompt), or Responses API ( input).
  • [Bug fix] Fixed a bug in the schema for multiple text generation models where the content field in message objects only accepted string values. The field now properly accepts both string content and array content (structured content parts for multi-modal inputs). This fix applies to all affected chat models including GPT-OSS models, Llama 3.x, Mistral, Qwen, and others.
  • [Bug fix] Tool call round-trips now work correctly. The binding no longer rejects tool_call_id values that it generated itself, fixing issues with multi-turn tool calling conversations.
  • [Bug fix] Assistant messages with content: null and tool_calls are now accepted in both the Workers AI binding and REST API ( /v1/chat/completions), fixing tool call round-trip failures.
  • [Bug fix] Streaming responses now correctly report finish_reason only on the usage chunk, matching OpenAI's streaming behavior and preventing duplicate finish events.
  • [Bug fix] /v1/chat/completions now preserves original tool call IDs from models instead of regenerating them. Previously, the endpoint was generating new IDs which broke multi-turn tool calling because AI SDK clients could not match tool results to their original calls.
  • [Bug fix] /v1/chat/completions now correctly reports finish_reason: "tool_calls" in the final usage chunk when tools are used. Previously, it was hardcoding finish_reason: "stop" which caused AI SDK clients to think the conversation was complete instead of executing tool calls.

2026-02-13

GLM-4.7-Flash, @cloudflare/tanstack-ai, and workers-ai-provider v3.1.1

2026-01-28

Black Forest Labs FLUX.2 [klein] 9B now available

2026-01-15

Black Forest Labs FLUX.2 [klein] 4b now available

2025-12-03

Deepgram Flux promotional period over on Dec 8, 2025 - now has pricing

2025-11-25

Black Forest Labs FLUX.2 dev now available

2025-11-13

Qwen3 LLM and Embeddings available on Workers AI

2025-10-21

New voice and LLM models on Workers AI

2025-10-02

Deepgram Flux now available on Workers AI

  • We're excited to be a launch partner with Deepgram and offer their new Speech Recognition model built specifically for enabling voice agents. Check out Deepgram's blog for more details on the release.
  • Access the model through @cf/deepgram/flux and check out the changelog for in-depth examples.

2025-09-24

New local models available on Workers AI

  • We've added support for some regional models on Workers AI in support of uplifting local AI labs and AI sovereignty. Check out the full blog post here.
  • @cf/pfnet/plamo-embedding-1b creates embeddings from Japanese text.
  • @cf/aisingapore/gemma-sea-lion-v4-27b-it is a fine-tuned model that supports multiple South East Asian languages, including Burmese, English, Indonesian, Khmer, Lao, Malay, Mandarin, Tagalog, Tamil, Thai, and Vietnamese.
  • @cf/ai4bharat/indictrans2-en-indic-1B is a translation model that can translate between 22 indic languages, including Bengali, Gujarati, Hindi, Tamil, Sanskrit and even traditionally low-resourced languages like Kashmiri, Manipuri and Sindhi.