OLMo
Fully open language models with open data and training code.
Full OLMo record →Head to head
OLMo vs Grok
OLMo (Allen Institute for AI) and Grok (xAI) both sit in Writing. OLMo is the cheaper entry point at Open weights, free. Grok shipped more tracked changes in the last 30 days (10 vs 0). Every value below comes from the latest crawl of the vendors' own pages.
| Attribute | OLMo Allen Institute for AI | Grok xAI |
|---|---|---|
| Segment | Writing | Writing |
| Version | OLMo 3 | Grok 4.7 |
| Entry cost | Open weights, free | from $2/mo |
| Pricing tiers | — | Grok 4.7 Input (per 1M tokens) $2 · Grok 4.7 Output (per 1M tokens) $6 |
| Model stack | OLMo 3 | grok-4.5 · grok-4.6 · grok-4.7 · grok-imagine-image · grok-imagine-image-2.0 · grok-imagine-image-quality · grok-imagine-video · grok-imagine-video-1.5 |
| Context window | — | 500000 |
| Public API | ||
| Routes models | ||
| Changes / 30d | 0 | 10 |
| Origin | Global | Global |
| Capabilities | Open data, Open checkpoints, Full recipe | Real-time X search, Think and Big Brain modes, Voice mode, Image generation, API access, text generation, agentic coding, voice agent |
Grok
Grok pairs xAI's in-house models with live access to the X firehose, sold standalone and bundled into X Premium tiers.
Full Grok record →