OpenAI API vs Together AI (2026): Which AI App Is Better?
Both are popular llm apis & developer platforms. Here is how OpenAI API and Together AI stack up on price, strengths and weaknesses, and which one we would pick.
OpenAI API
GPT, reasoning, image, audio and realtime models with the Responses API
9.2 /10
Pricing: Free plan, pay as you go
Pros
- Broadest model line-up
- Built-in tools for search, files and computer use
- Excellent docs and SDKs
Cons
- Rate limits scale with spend tier
- Model deprecations require migrations
Together AI
Fast, cheap inference and fine-tuning for open models
8.2 /10
Pricing: Free plan, pay as you go
Pros
- Competitive pricing and speed
- Fine-tuning and dedicated endpoints
- OpenAI-compatible API
Cons
- Open models only
- Occasional capacity limits
OpenAI API vs Together AI at a glance
| OpenAI API | Together AI | |
|---|---|---|
| Editor score | 9.2 / 10 | 8.2 / 10 |
| Pricing model | Paid | Paid |
| Starting price | Free | Free |
| Reader upvotes | 0 | 0 |
| Best for | api, gpt, embeddings | inference, fine-tuning, open models |
Our pick
OpenAI API edges it with a score of 9.2 versus 8.2. OpenAI API is the better fit if you value: broadest model line-up, built-in tools for search, files and computer use. Choose Together AI instead if you need: competitive pricing and speed, fine-tuning and dedicated endpoints.
Other llm apis & developer platforms to consider
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Hugging Face Freemium
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Google AI Studio Freemium
Prototype with Gemini for free, then ship with the Gemini API
Ollama Open source
Run Llama, Gemma, DeepSeek and more locally with one command