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Together AI vs xAI Grok
Comparing two ai & llm apis platforms on pricing, features, free tier, and trade-offs.
Quick summary
Together AI — Run open-source AI models in production. Together AI hosts 200+ open-source models (Llama, Mixtral, Qwen, DeepSeek, Flux) with competitive pricing, fine-tuning, and dedicated endpoints.
xAI Grok — xAI's Grok model with real-time X access. xAI's Grok 2 and Grok 3 API with native access to X (Twitter) data, competitive reasoning, and vision capabilities.
Feature comparison
| Feature | Together AI | xAI Grok |
|---|---|---|
| Pricing model | Freemium | Paid |
| Starting price | Pay per token | Pay per token |
| Free tier | Yes | No |
| Open source | No | No |
| Vision | Yes | Yes |
| Streaming | Yes | Yes |
| Embeddings | Yes | No |
| Max Output | 8K | 8K |
| Fine-tuning | Yes | No |
| Context Window | 128K | 131K |
| Flagship Model | Llama 3.3 405B | Grok 3 |
| Reasoning Model | DeepSeek R1 | Grok 3 Thinking |
| Function Calling | Yes | Yes |
| EU Data Residency | No | No |
T
Together AI
Run open-source AI models in production
Pros
- 200+ open-source models one API
- Fine-tuning infrastructure built in
- Dedicated endpoints for SLA workloads
- Image generation (Flux) too
Cons
- No proprietary frontier model
- Pricing varies wildly per model
- Documentation sometimes out-of-sync
xAI Grok
xAI's Grok model with real-time X access
Pros
- Real-time X/Twitter data access
- Less filtered / more willing to engage edgy topics
- Competitive reasoning benchmarks
Cons
- Smallest ecosystem / SDK support
- US-only data residency
- Brand association may be a concern for some
Which should you choose?
Choose Together AI if a free tier is important for your stage. Choose xAI Grok if you need production-grade features and are ready to pay.
Frequently asked questions
Which is better, Together AI or xAI Grok?
There is no universal “better.” For most teams, Together AI is the safer default because Together AI offers a free tier (paid plans from Pay per token), while xAI Grok requires a paid plan. For edge cases, the comparison table above highlights where each tool wins.
Is Together AI cheaper than xAI Grok?
Together AI starts at Pay per token, while xAI Grok starts at Pay per token. Exact costs depend on usage — check both vendors' calculators before committing.
Can I migrate from Together AI to xAI Grok?
Migration difficulty depends on how deeply Together AI-specific features (APIs, SDK conventions, data schemas) are baked into your app. Most ai & llm apis migrations take days to weeks. Both vendors typically publish migration guides — check their docs.
Is Together AI or xAI Grok open source?
No — both Together AI and xAI Grok are proprietary managed services. If open source is a requirement, see our alternatives pages.
Does Together AI or xAI Grok have a free tier?
Together AI has a free tier; xAI Grok does not.
Which is best for startups and indie hackers?
Startups usually optimize for the lowest friction to ship and the cheapest possible free tier. The one with the most generous free tier here is Together AI. For production workloads, revisit the trade-offs in the feature table above.