OpenAI API vs xAI Grok API
LLM API Providers pricing comparison · 2026
OpenAI API pricing ranges from $0.02–$270/per million tokens, while xAI Grok API ranges from $0.2–$30/per million tokens. These products use different pricing models (Usage-based (pay per token/image/minute) vs Per-seat subscription), so a direct price comparison isn't meaningful — costs depend on usage volume and mix.
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OpenAI API and xAI Grok API are two leading LLM API providers. This page compares their per-token pricing, available models, and tier structure so you can pick the right backend for your workload — whether you're optimizing for cost per 1M tokens, latency, or model quality.
Plan-by-Plan Pricing
| Plan | OpenAI API | xAI Grok API |
|---|---|---|
| GPT-5.4 mini / nano (Economy) | Custom | Custom |
| GPT-5.4 / GPT-5.4 Pro (Flagship) | Custom | Custom |
| Enterprise | Custom | — |