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

> ## Agent Instructions
> Phaseo Gateway base URL: https://api.phaseo.app/v1. Send `Authorization: Bearer $PHASEO_API_KEY` with every request.
> Model IDs look like `provider/model`, for example `openai/gpt-6-astra`. Do not guess IDs: list them with `GET /v1/models` or check https://phaseo.app/models. `phaseo/free` routes to an available free model and needs no wallet balance.
> For new text integrations prefer `POST /v1/responses`. `POST /v1/chat/completions` (OpenAI format) and `POST /v1/messages` (Anthropic format) suit existing code.
> The full API contract is https://phaseo.app/docs/openapi/v1/openapi.yaml. Official SDKs: `@phaseo/sdk` (TypeScript) and `phaseo` (Python), plus Go, C#, PHP, Ruby and Rust.
> Search these docs over MCP at https://phaseo.app/docs/mcp, and install Phaseo skills with `npx skills add https://phaseo.app/docs`. If a page is wrong or out of date, report it with the MCP `submit_feedback` tool.
> Manage Phaseo accounts with the `phaseo` CLI (`npm install -g @phaseo/cli`, then `phaseo login` or `phaseo login --device-code`), the `/v1` Management API or the MCP server at `https://mcp.phaseo.app/mcp?access=manage`. Do not send users to the dashboard for account tasks. A person is still needed for sign-up, approving a sign-in, paying the first top-up on the checkout link that `phaseo credits add` returns when no card is saved, confirming each saved-card top-up from the emailed link, and account security (password, MFA, passkeys). Create API keys with `phaseo keys create --name <name> --json`; never guess one. Credit top-ups need `phaseo login --scopes billing:write` first. Task map: https://phaseo.app/docs/v1/developers/manage-from-an-agent.md.

# May

> Phaseo product updates, SDK changes, and model releases from May 2026.

**May 31, 2026**

API & SDKs

* **Breaking:** Text requests set the tier only with `service_tier`; replace `speed: "fast"` with `service_tier: "priority"`, and synchronous `service_tier: "batch"` requests now return a validation error; see [Service Tiers](https://phaseo.app/docs/v1/guides/service-tiers.md) ([#565](https://github.com/phaseoteam/Phaseo/pull/565)).

Models

![Cosmos3 Super Reasoner model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-31--nvidia--cosmos3-super-reasoner.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=eb305f3780822a2e46cac37ad4ab1258)

* [Nvidia: Cosmos3 Super Reasoner](https://phaseo.app/models/nvidia/cosmos3-super-reasoner)

**May 30, 2026**

Models

![Grok Imagine Video 1.5 Preview model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-30--x-ai--grok-imagine-video-1-5-preview.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=2b8e49f8ce4d2bd4eb8583a219b70e96)

* [xAI: Grok Imagine Video 1.5 Preview](https://phaseo.app/models/x-ai/grok-imagine-video-1.5-preview)

**May 29, 2026**

Product

* Model page quickstarts list the endpoints a model supports with their HTTP methods, and choosing one updates the example code ([#521](https://github.com/phaseoteam/Phaseo/pull/521)).

API & SDKs

* Requests with `service_tier: "priority"` now route only to providers that support that tier, and Venice serves Claude Opus 4.8 priority requests under the same model ID; see [Service Tiers](https://phaseo.app/docs/v1/guides/service-tiers.md) ([#524](https://github.com/phaseoteam/Phaseo/pull/524), [#530](https://github.com/phaseoteam/Phaseo/pull/530)).

Models

* [StepFun: Step 3.7 Flash](https://phaseo.app/models/stepfun/step-3.7-flash)

**May 28, 2026**

Product

* Model pricing panels keep the plan selector visible when a provider has only one active plan, such as batch-only pricing ([#515](https://github.com/phaseoteam/Phaseo/pull/515)).
* Anthropic on AWS routes show the AWS logo and clearer provider names in model pricing and provider lists ([#519](https://github.com/phaseoteam/Phaseo/pull/519), [#525](https://github.com/phaseoteam/Phaseo/pull/525), [#526](https://github.com/phaseoteam/Phaseo/pull/526)).

Models

![Claude Opus 4.8 model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-28--anthropic--claude-opus-4-8.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=8b6a81bf90bf2774e8e8f871d6a348ee)

* [Anthropic: Claude Opus 4.8](https://phaseo.app/models/anthropic/claude-opus-4.8)
* [CrofAI: Greg RP](https://phaseo.app/models/crofai/greg-rp)
* [Google: Gemini 3 Pro Image (Nano Banana Pro)](https://phaseo.app/models/google/gemini-3-pro-image)
* [Google: Gemini 3.1 Flash Image (Nano Banana 2)](https://phaseo.app/models/google/gemini-3.1-flash-image)

**May 26, 2026**

Models

![Qwen 3.7 Plus (2026-05-26) model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-26--qwen--qwen3-7-plus-2026-05-26.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=97a9c56ef4eda62e70379e82f0f3ea35)

* [Qwen: Qwen 3.7 Plus (2026-05-26)](https://phaseo.app/models/qwen/qwen3.7-plus-2026-05-26)

**May 25, 2026**

Models

![Qwen 3.7 Max (2026-05-17) model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-25--qwen--qwen3-7-max-2026-05-17.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=4c402a571c3e1bea1792aaf52f218e34)

* [Qwen: Qwen 3.7 Max (2026-05-17)](https://phaseo.app/models/qwen/qwen3.7-max-2026-05-17)
* [Qwen: Qwen 3.7 Max Preview](https://phaseo.app/models/qwen/qwen3.7-max-preview)

**May 21, 2026**

Models

![Qwen 3.7 Max model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-21--qwen--qwen3-7-max.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=4ee3a8710655fca421e72f0f6ff4b745)

* [Qwen: Qwen 3.7 Max](https://phaseo.app/models/qwen/qwen3.7-max)

**May 20, 2026**

Models

![Command A+ model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-20--cohere--command-a-plus.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=3ad8198321dc833b42590b6b56dda841)

* [Cohere: Command A+](https://phaseo.app/models/cohere/command-a-plus)

**May 19, 2026**

Product

* **Models** lists the free router, and its page shows which free models it can route to and recent routed usage; see [Launch on the free router](https://phaseo.app/docs/v1/cookbook/free-router-first-deploy.md) ([#495](https://github.com/phaseoteam/Phaseo/pull/495)).

Models

![Gemini 3.5 Flash model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-19--google--gemini-3-5-flash.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=629aa93a28c17a83087618d6e2455038)

* [Google: Gemini 3.5 Flash](https://phaseo.app/models/google/gemini-3.5-flash)
* [Qwen: Qwen 3.5 LiveTranslate Flash Realtime (2026-05-19)](https://phaseo.app/models/qwen/qwen3.5-livetranslate-flash-realtime-2026-05-19)

**May 18, 2026**

Models

![Composer 2.5 model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-18--cursor--composer-2-5.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=97a23cd85c2398e028f1623a9f0a3652)

* [Cursor: Composer 2.5](https://phaseo.app/models/cursor/composer-2.5)

**May 16, 2026**

Models

* [xAI: Grok TTS](https://phaseo.app/models/x-ai/grok-tts)

**May 15, 2026**

Models

![Grok Build 0.1 model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-15--x-ai--grok-build-0-1.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=2ec61618309b8fbe31a3f11ea16e10ae)

* [xAI: Grok Build 0.1](https://phaseo.app/models/x-ai/grok-build-0.1)

**May 9, 2026**

Product

* Chat can retry a failed image or video generation with the same prompt, model and temporary chat setting ([#479](https://github.com/phaseoteam/Phaseo/pull/479)).

**May 8, 2026**

API & SDKs

* The TypeScript, Python, Go, C#, Java, PHP and Ruby SDKs `2.0.4` add `session_id`, structured error diagnostics and model availability fields to their types; see [release notes](https://github.com/phaseoteam/Phaseo/releases/tag/%40ai-stats%2Fsdk%402.0.4) ([#476](https://github.com/phaseoteam/Phaseo/pull/476)).

**May 7, 2026**

Product

* Pricing hover cards on **Models** show image, video and tiered text prices, grouped by quality, resolution, duration, audio and context size ([#474](https://github.com/phaseoteam/Phaseo/pull/474)).
* **Models** shows minute-billed audio models such as `whisper-1` at their per-minute price, for example \$0.006 per minute, instead of a rounded token price ([#477](https://github.com/phaseoteam/Phaseo/pull/477)).
* Model page headers add a model ID control that switches between the model's aliases and copies the selected ID ([#473](https://github.com/phaseoteam/Phaseo/pull/473)).
* Filter counts in the **Models** sidebar now update to match the other filters you select ([#473](https://github.com/phaseoteam/Phaseo/pull/473)).

API & SDKs

* **Breaking:** `/v1/videos`, `/v1/batches`, `/v1/files` and `/v1/music/generations` are temporarily disabled and return `501 not_implemented`; pause calls to them until they are re-enabled ([#473](https://github.com/phaseoteam/Phaseo/pull/473)).

Models

![Gemini 3.1 Flash-Lite model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-07--google--gemini-3-1-flash-lite.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=1ee5ee2025aefe862073754ffa518cd8)

* [Google: Gemini 3.1 Flash-Lite](https://phaseo.app/models/google/gemini-3.1-flash-lite)
* [OpenAI: GPT Realtime 2](https://phaseo.app/models/openai/gpt-realtime-2)
* [OpenAI: GPT Realtime Translate](https://phaseo.app/models/openai/gpt-realtime-translate)
* [OpenAI: GPT Realtime Whisper](https://phaseo.app/models/openai/gpt-realtime-whisper)

**May 6, 2026**

API & SDKs

* The List models endpoint accepts `availability=all` to include coming-soon and inactive models, and each provider entry returns `availability_status` and `availability_reason`; see [List models](https://phaseo.app/docs/v1/api-reference/endpoint/models.md) ([#466](https://github.com/phaseoteam/Phaseo/pull/466)).
* Error responses include `failed_providers`, `routing_diagnostics` and `provider_failure_diagnostics`, which point to causes such as missing credentials or region limits; see [Errors and Debugging](https://phaseo.app/docs/v1/api-reference/errors.md) ([#467](https://github.com/phaseoteam/Phaseo/pull/467)).
* The Get a generation endpoint returns `replay_request` and `replay_supported`, so a logged request can be sent again to its original endpoint; see [Get a generation](https://phaseo.app/docs/v1/api-reference/endpoint/generation.md) ([#467](https://github.com/phaseoteam/Phaseo/pull/467)).

Models

![Grok Imagine Image Quality model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-06--x-ai--grok-imagine-image-quality.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=e0cc5cbf6ac308d7f73db625c8a2c0a8)

* [xAI: Grok Imagine Image Quality](https://phaseo.app/models/x-ai/grok-imagine-image-quality)

**May 5, 2026**

Models

![chat-latest model release artwork](https://mintcdn.com/aistats/VSKAqlATzAfPsJZ8/images/model-releases/2026-05-05--openai--chat-latest.png?fit=max\&auto=format\&n=VSKAqlATzAfPsJZ8\&q=85\&s=99c923025e26e9a51ec1190635512ea0)

* [OpenAI: chat-latest](https://phaseo.app/models/openai/chat-latest)

**May 4, 2026**

Product

* **Settings -> Usage** splits activity into **Logs**, **Jobs** and **Sessions** views, with live refresh and filters and time ranges kept in the URL ([#463](https://github.com/phaseoteam/Phaseo/pull/463), [#467](https://github.com/phaseoteam/Phaseo/pull/467)).
* The model playground shows **Retry** and **Delete** on failed image and video generations, and **Retry** reuses the same prompt and model ([#465](https://github.com/phaseoteam/Phaseo/pull/465)).

API & SDKs

* Chat Completions and Responses requests accept `session_id`, which groups related requests into one session in usage logs ([#463](https://github.com/phaseoteam/Phaseo/pull/463)).

**May 2, 2026**

API & SDKs

* Workspace policies that block models or providers are enforced again, so blocked requests are rejected before routing ([#444](https://github.com/phaseoteam/Phaseo/pull/444)).

**May 1, 2026**

Product

* The model playground adds **TTS** and **Music** modes for text-to-speech and music generation models ([#441](https://github.com/phaseoteam/Phaseo/pull/441)).
* Model cards on **Models** no longer show **Free** for paid models, and the coming-soon filter count matches the models listed ([#441](https://github.com/phaseoteam/Phaseo/pull/441)).

API & SDKs

* The TypeScript, Python, Go, C#, Java, PHP and Ruby SDKs `2.0.3` add the latest model and benchmark IDs to their typed lists; see [release notes](https://github.com/phaseoteam/Phaseo/releases/tag/%40ai-stats%2Fsdk%402.0.3) ([#439](https://github.com/phaseoteam/Phaseo/pull/439)).


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