ICYMI: What We Shipped in March 2026

March was a foundation month for Phaseo. A lot of the work was about making the product easier to trust before bigger gateway and catalog releases arrived later in the spring.

This recap covers the work that shipped from 1 March 2026 through 31 March 2026, based on the release history, commit history, and catalog data for the month.

What Shipped

Embeddings became easier to use

Embeddings support moved from "possible" to much more visible in March. The product, API, SDK examples, and docs all picked up improvements so teams could find embedding models, understand how they fit into the catalog, and build against them without hunting through separate pieces of the product.

That matters because embeddings are often the first building block for search, retrieval, ranking, memory, and recommendation workflows. They are not always the most visible model releases, but they are the layer that makes a lot of useful AI features work.

The catalog also added Gemini Embedding 2 Preview during the month, alongside broader model metadata updates. Together, those changes made Phaseo more useful for teams building retrieval workflows, not only chat interfaces.

Explore the catalog here:

• Explore models here

Model pages got lighter and easier to navigate

Model pages saw several practical improvements in March. Timeline loading moved toward a more direct previous-and-next lookup, provider and model routes were cleaned up, and model data was refreshed across the web app, API, docs, and SDKs.

The result was a quieter but important improvement: model pages had less unnecessary work to do, and the product became better at showing the right model information in the right place.

Search also improved. Header search started prioritising direct model-name matches, and chat links were cleaned up so messages pointed to the right model pages. That makes a difference when the catalog is growing quickly and users are trying to jump straight to a specific release.

Multimodal coverage moved forward

March included a broad release that aligned SDKs, multimodal examples, docs, and product pages. Audio, video, and chat surfaces all received related work through the month.

This did not all land as one headline feature. Instead, it was the groundwork needed for a product that can talk about more than text models. The important change was consistency: model types, docs, examples, and product pages started matching each other more closely.

That consistency matters for developers. If a model supports audio or video, the product should make that clear, the docs should explain how to use it, and SDK examples should not lag behind the product.

Billing and credits became clearer

March added a promo-code redemption flow, transaction polish, and an internal view for outstanding promotional credit totals. The gateway also normalised billing usage and quickstart identifiers.

These changes are not the kind of thing users screenshot, but they reduce confusion. If a user is trying Phaseo for the first time, the basics need to be clear: what credit they have, what was used, and which account or workspace it belongs to.

That work also helped prepare the product for the larger account and workspace changes that shipped in April.

SDKs and release tooling stayed in sync

The month included package releases, SDK validation work, version checks, and generated client updates. This kept public packages aligned with the API and model catalog as releases landed.

That is especially important for a catalog product. New model data is only useful if it reaches the places developers actually use: model IDs, generated SDKs, docs, examples, and API responses.

Also Shipped

• Mobile navigation was tightened, including dropdown width, separators, theme controls, and a more unified mobile menu.
• Signup failures were made easier to isolate with safer side effects and better stage logging.
• Temporary upstream chat error logging was removed after debugging work finished.
• Dependency updates landed across the repo, including updates for security advisories.
• Model discovery alerts and Hugging Face or internal notifications were improved so new catalog work was easier to monitor.

Model Highlights

March brought several important additions. OpenAI GPT 5.4, GPT 5.4 Pro, GPT 5.4 Mini, and GPT 5.4 Nano expanded the OpenAI side of the catalog. Gemini 3.1 Flash Lite Preview and Gemini Embedding 2 Preview added useful Google coverage. Mistral Small 4, Mistral Moderation 2, Leanstral, and Voxtral TTS broadened Mistral coverage across text, moderation, and speech.

The month also included GLM 5 Turbo, Nemotron 3 Super, MiniMax M2.7, multiple Xiaomi MiMo V2 models, and the first Veo 3.1 Lite Preview entry at the end of the month.

Shipping Snapshot

The local git history shows 74 commits during March. The month included model-data releases, SDK package releases, billing fixes, mobile navigation polish, and catalog updates for OpenAI, Anthropic, Google, Mistral, Xiaomi, MiniMax, Qwen, and others.

Models Released In March 2026

The catalog includes these models with March 2026 release dates:

• 2 March: Qwen 3.5 0.8B (qwen/qwen3.5-0.8b)
• 2 March: Qwen 3.5 2B (qwen/qwen3.5-2b)
• 2 March: Qwen 3.5 4B (qwen/qwen3.5-4b)
• 2 March: Qwen 3.5 9B (qwen/qwen3.5-9b)
• 3 March: Gemini 3.1 Flash Lite Preview (google/gemini-3.1-flash-lite-preview)
• 3 March: GPT 5.3 Chat (openai/gpt-5.3-chat)
• 5 March: GPT 5.4 (openai/gpt-5.4)
• 5 March: GPT 5.4 Pro (openai/gpt-5.4-pro)
• 10 March: Aion 2.5 (aion-labs/aion-2.5)
• 10 March: Gemini Embedding 2 Preview (google/gemini-embedding-2-preview)
• 11 March: Nemotron 3 Super (nvidia/nemotron-3-super-120b-a12b)
• 15 March: GLM 5 Turbo (z-ai/glm-5-turbo)
• 16 March: Leanstral (mistral/leanstral)
• 16 March: Mistral Small 4 (mistral/mistral-small-4)
• 17 March: Mistral Moderation 2 (mistral/mistral-moderation-2)
• 17 March: GPT 5.4 Mini (openai/gpt-5.4-mini)
• 17 March: GPT 5.4 Nano (openai/gpt-5.4-nano)
• 18 March: MiniMax M2.7 (minimax/minimax-m2.7)

Next Up

March set up the product for a faster April: better pricing pages, workspace changes, more model page improvements, and a bigger run of model releases.