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Together AI vs Vertex AI

A feature-by-feature comparison of Together AI and Vertex AI across 7 capability categories.

First tool

Try Together AI (opens in a new tab)

Second tool

Try Vertex AI (opens in a new tab)

Modalities — Vertex AI Wins

Modalities: Together AI compared with Vertex AI
Feature	Together AI	Vertex AI
Text Input	Yes, requires free plan. Serverless inference and playground take chat/completions text.	Yes, requires plus plan. Gemini and other models via Generate Content API and Agent Studio.
Image Upload / Vision	Unknown. Vision on hosted models was not confirmed on the marketing homepage.	Yes, requires plus plan. Gemini multimodal accepts images in the API and console.
Image Generation	Unknown. Together is inference/GPU cloud. Image model hosting was not on the homepage snippet.	Yes, requires plus plan. Imagen models in Model Garden and Vertex AI Studio.
Voice Mode	No. Not a conversational voice product.	Partial. Speech APIs exist. Not a consumer voice-chat loop like Gemini app.
Video Understanding	No. Not a video-analysis product.	Yes, requires plus plan. Gemini video understanding in Agent Studio and the API.
Video Generation	No. Not a video generation product.	Yes, requires plus plan. Vertex AI serves Veo and other video generation models.
File Upload (PDF, DOCX)	No. Chat/completions, not a PDF uploader.	Yes, requires plus plan. RAG with Cloud Storage and document ingestion in Agent Builder.
Code Execution	Yes, requires plus plan. Code sandboxes are listed on the product page.	Partial. Colab Enterprise and notebooks for code. Not a chat Python sandbox.
Audio Input	Unknown. Speech endpoints were not on the homepage snippet.	Partial. Speech-to-text models available. Vertex is a platform, not a voice assistant.
Canvas / Artifact Editor	No. Playground, not a canvas.	No. Studio is a dev console, not a consumer canvas.
Screen Sharing / Computer Use	No. No computer-use product.	No. No computer-use desktop product.

Memory & Context — Tie

Memory & Context: Together AI compared with Vertex AI
Feature	Together AI	Vertex AI
Persistent Memory	No. Stateless inference. You keep history.	Partial. RAG corpora and agent session config. Distinct from consumer Gemini memory.
Large Context Window	Unknown. Depends on the open model you host. No single Together window on the homepage.	Unknown. Depends on the Gemini/model version deployed.
Custom Instructions	Yes, requires free plan. System prompts in the API.	Yes, requires plus plan. System instructions in Agent Studio and API prompts.
Conversation History	Partial. Playground/console history. The API is stateless.	Partial. Session state in agents. API calls are otherwise stateless.

Integrations — Vertex AI Wins

Integrations: Together AI compared with Vertex AI
Feature	Together AI	Vertex AI
Web Search / Browsing	No. Not a search product.	Partial. Grounding with Google Search in Gemini API. Enterprise Agent Platform feature set.
Plugins / Extensions	Partial. Endpoints, batch, dedicated clusters. Not a GPT plugin store.	Yes, requires plus plan. Extensions, tools, and Model Garden integrations.
API Access	Yes, requires free plan. Inference API, fine-tuning, GPU cloud. Usage billing, not a seat.	Yes, requires plus plan. Vertex AI REST/gRPC SDK. $300 credits for new accounts.
Zapier Integration	Unknown. No first-party Zapier listing was checked.	Unknown. No first-party Zapier listing was checked.
Custom GPTs / Bots	No. No GPT store.	Yes, requires plus plan. Agent Builder and Agent Studio deploy custom agents.
Real-time Collaboration	No. No multiplayer chat.	Partial. IAM-shared console and notebooks. Not multiplayer chat.
Live Social Data Integration	No. No live social firehose.	No. No live social firehose product.
Live Citation Mapping	No. Not a cited-search product.	Partial. Grounding with Search returns citations. RAG returns source chunks.

Developer — Vertex AI Wins

Developer: Together AI compared with Vertex AI
Feature	Together AI	Vertex AI
Function Calling	Unknown. Tool use on hosted models was not confirmed on the homepage.	Yes, requires plus plan. Function calling in Gemini and agent tool use.
Streaming Responses	Yes, requires plus plan. Serverless inference streams tokens. Research kernels (FlashAttention) are the latency pitch.	Yes, requires plus plan. Streaming generateContent responses.
Fine-Tuning	Yes, requires plus plan. Fine-tuning is a listed product next to inference and GPU cloud.	Yes, requires plus plan. Supervised fine-tuning and tuning jobs in Vertex AI.
Embeddings API	Unknown. An embeddings endpoint was not confirmed on the homepage.	Yes, requires plus plan. Text embeddings and Vector Search.
Structured Output (JSON)	Unknown. JSON mode was not confirmed on the homepage.	Yes, requires plus plan. JSON schema / response schema in Gemini API.
Reasoning / Thinking Mode	Unknown. You can host reasoning open models. No Together Deep Think toggle.	Partial. Thinking/reasoning models in Gemini 2.x family. Platform-level, not a single toggle.
Local Execution	No. Cloud GPUs / serverless. Not on your laptop.	No. Cloud GCP inference. Distinct from Antigravity local dev.
Open Weights	Partial. Inference cloud for open models. Together’s serving stack is not a weight release.	Partial. Model Garden hosts open models (Gemma, Llama) plus Google proprietary models.
Multi-Agent Orchestration	No. You orchestrate in your app.	Yes, requires plus plan. Gemini Enterprise Agent Platform supports multi-agent flows.

Platforms — Tie

Platforms: Together AI compared with Vertex AI
Feature	Together AI	Vertex AI
Web App	Yes, requires free plan. together.ai console.	Yes, requires plus plan. Google Cloud console and Vertex AI Studio.
iOS App	No. No iOS app.	No. No consumer iOS app. Distinct from Gemini mobile.
Android App	No. No Android app.	No. No consumer Android app.
Desktop App	No. No desktop app.	No. Browser console, not a desktop chat app.
Chrome Extension	No. No Chrome extension.	No. No Chrome extension.

Privacy — Vertex AI Wins

Privacy: Together AI compared with Vertex AI
Feature	Together AI	Vertex AI
GDPR Compliant	Unknown. Needs a current DPA read.	Partial. Google Cloud compliance offerings. Specific Vertex DPA not re-read.
Opt Out of Data Training	Unknown. Training use of prompts was not checked.	Partial. Enterprise terms restrict training on customer data. Consumer Gemini policies differ.
Enterprise Privacy Mode	Unknown. Dedicated endpoints exist; enterprise contract terms were not on the homepage.	Yes, requires enterprise plan. VPC-SC, CMEK, and Gemini Enterprise privacy controls.

Workspaces — Tie

Workspaces: Together AI compared with Vertex AI
Feature	Together AI	Vertex AI
Projects / Folders	No. No consumer project product.	Unknown. Overlapping columns disagreed (yes vs partial); left unverified rather than copying a no.