- OpenAI has the cheaper entry model: gpt-6-luna at a blended $0.20 per million tokens.
- At the top end, gpt-6-cyber costs $100.00 per million output tokens versus $6.00 for grok-4.7.
OpenAI vs xAI at a glance
| OpenAI | xAI | |
|---|---|---|
| Cheapest model | gpt-6-luna · $0.10 in / $0.50 out | grok-build-0.1 · $1.00 in / $2.00 out |
| Top-tier model | gpt-6-cyber · $20.00 in / $100.00 out | grok-4.7 · $2.00 in / $6.00 out |
| Models tracked | 11 | 7 |
| Prompt-caching discount | Yes | Yes |
| Category | LLM API | LLM API |
| Plans tracked | 11 | 7 |
Green marks the lower price.
Prices last checked November 8, 2026 · re-checked twice a week from official pricing pages and APIs · How we collect prices
Every plan, side by side
OpenAI
| Model | Price |
|---|---|
| gpt-6-astra | $10.00 in / $50.00 out |
| gpt-6.1-sol | $2.00 in / $10.00 out |
| gpt-6-luna | $0.10 in / $0.50 out |
| gpt-5.6-sol | $4.00 in / $20.00 out |
| gpt-5.6-cyber | $12.50 in / $75.00 out |
| gpt-realtime-2.1 | $4.00 in / $24.00 out |
| gpt-realtime-2.1-mini | $0.60 in / $2.40 out |
| chat-latest | $5.00 in / $30.00 out |
| gpt-6.1-terra | $1.00 in / $5.00 out |
| gpt-5.3-codex | $1.75 in / $14.00 out |
| gpt-6-cyber | $20.00 in / $100.00 out |
xAI
| Model | Price |
|---|---|
| grok-4.7 | $2.00 in / $6.00 out |
| grok-4.6 | $2.00 in / $6.00 out |
| grok-4.5 | $2.00 in / $6.00 out |
| grok-4.3 | $1.25 in / $2.50 out |
| grok-4.20-0309-reasoning | $1.25 in / $2.50 out |
| grok-4.20-0309-non-reasoning | $1.25 in / $2.50 out |
| grok-build-0.1 | $1.00 in / $2.00 out |
Related comparisons
Frequently asked questions
Is OpenAI or xAI cheaper?
OpenAI has the cheaper entry model: gpt-6-luna at a blended $0.20 per million tokens.
How current is this OpenAI vs xAI comparison?
Both providers' prices come from CloudMart's live catalog, last checked November 8, 2026. The page is rebuilt from current data on every visit.
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