alternatives/Together AI
Together AI alternative

AIgateway: the best Together AI alternative in 2026

The best Together AI alternative in 2026 is AIgateway. Together hosts ~80 open-weight models; AIgateway ships those plus frontier models (Claude Opus 4.7, GPT-5.4, Gemini 3.1 Pro, Kimi K2.6) on one OpenAI-compatible key, with every modality — not just text and image.

Get your key →See pricingClaim credit match
Feature comparison

AIgateway vs Together AI

Side-by-side on the dimensions that move a production decision.

Feature
AIgateway
Together AI
Frontier models
Claude Opus 4.7, GPT-5.4, Gemini 3.1, Grok
No — open-weight only
Modalities
Every modality
Text + image
Sub-account API
Yes
No
OpenAI-compatible
Yes
Yes
Edge latency
47ms p50
Regional
Fine-tuning
Enterprise roadmap
Yes

Feature comparison reflects public documentation as of 2026. Together AI pricing shape: Per-token on hosted open-weight models.. Catalog: ~80 open-source models; no Anthropic/OpenAI frontier..

Migrate in 5 minutes

Three steps. One base URL.

If you're on Together AI through the OpenAI SDK, you're 90% of the way there. Change the base URL and the key.

STEP 01

Sign up for AIgateway

Create an account at aigateway.sh/signin and copy an sk-aig-... key from the dashboard.

STEP 02

Swap base URL + key

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)
STEP 03

Ship

Request shape, response shape, streaming SSE — identical to OpenAI. Model slugs map 1:1 on shared providers. Together AI users typically migrate in under 5 minutes.

4 other alternatives

Other Together AI alternatives worth checking

Honest take: here are four other credible options. None ship the full multi-modal catalog + sub-accounts + evals under one key, but each has a legit wedge.

#2 — LLM router

OpenRouter

Text-LLM aggregator with ~300 model routes.

Closed source · ~300 text-only models.
Read the full OpenRouter comparison →
#3 — Governance gateway

Portkey

LLM gateway-as-a-service focused on governance and observability.

Partially open source · ~40 models, mostly text + some image.
Read the full Portkey comparison →
#4 — Observability proxy

Helicone

LLM observability proxy — strong at logging, not a routing layer.

Open source · Pass-through proxy — whatever providers you wire up.
Read the full Helicone comparison →
#5 — LLM router

Requesty

Cost-aware text-LLM router.

Closed source · ~50 text models.
Read the full Requesty comparison →
FAQ

Common questions about Together AI alternatives

Is Together AI open source?
Together hosts open-source models but the platform itself is closed-source. AIgateway is closed-source too.
Does Together charge markups?
Together prices per token on hosted open-weight models. AIgateway charges 5% at top-up on inference, with pass-through model pricing.
Does Together have Claude or GPT-5?
No — Together is open-weight only. AIgateway routes Claude Opus 4.7, GPT-5.4, Gemini 3.1 Pro, and Grok alongside open-weight models on one key.
Can I fine-tune on AIgateway?
Fine-tuning is on the Enterprise roadmap. Together is a reasonable pair alongside AIgateway if you need fine-tune today.
Is AIgateway cheaper than Together?
On shared open-weight models, pricing is close. AIgateway wins on unified billing + sub-accounts + evals and adds frontier models on the same key.
Is there a free tier?
Yes — 100 req/day on Kimi K2.6 on AIgateway with no card required.
More alternatives

Switching from something else?

OpenRouter alternative →Portkey alternative →Helicone alternative →Requesty alternative →Braintrust alternative →LiteLLM alternative →LangSmith alternative →Vellum alternative →Traceloop alternative →Langfuse alternative →Anyscale alternative →Fireworks AI alternative →