Grok 4.5: API pricing, providers and specs
Grok 4.5 is a text model by xAI. 22 providers serve it, from $3.20 to $6.80 /1M; the lowest price is at APIMart.
A newer version is out: Grok 4.20 · released Mar 12, 2026
How Grok 4.5 compares
Against the 737 text models on the site priced the same way.
- Pricey for its class: at $3.20 /1M, its lowest price is above 71% of comparable models (median $1.10).
- Its 500K-token context window is larger than 66% of them (median 262K), about 750 pages of text.
- On LMArena's WebDev board it ranks #33 of the 64 comparable models scored there.
- 22 providers serve it; 89% of comparable models have fewer.
Grok 4.5 prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| APIMart | $1.60/1M | $3.20/1M | — | — |
 CometAPI | $1.60/1M | $4.80/1M | $0.40/1M | — |
| xAIOfficial | $2/1M | From$6/1M | $0.30/1M | 500K |
| ZenMux | $2/1M | From$6/1M | $0.50/1M | 500K |
 CrossModel | $2/1M | From$6/1M | $0.30/1M | — |
 Requesty | $2/1M | From$6/1M | $0.50/1M | 500K |
 Ofox | $2/1M | $6/1M | $0.30/1M | 500K |
 OrcaRouter | $2/1M | $6/1M | $0.30/1M | 500K |
| Vercel AI Gateway | $2/1M | $6/1M | $0.30/1M | 500K |
 AIHubMix | $2/1M | From$6/1M | $0.50/1M | 500K |
 Impossibl | $2/1M | From$6/1M | $0.30/1M | — |
| OpenRouter | $2/1M | From$6/1M | $0.30/1M | 500K |
| DevPass (LLM Gateway) | $2/1M | From$6/1M | $0.30/1M | — |
 Perplexity | $2/1M | From$6/1M | $0.30/1M | — |
 APIYI | $2/1M | $6/1M | — | — |
 LaoZhang API | $2/1M | $6/1M | — | — |
| Atlas Cloud | $2/1M | $6/1M | $0.30/1M | — |
 FastRouter | $2/1M | From$6/1M | $0.30/1M | 500K |
 Jiekou.AI | $2/1M | $6/1M | $0.50/1M | — |
 Poe | $2.02/1M | $6.06/1M | $0.303/1M | 500K |
 Kenari | $2.21/1M | $6.63/1M | $0.331/1M | — |
 Venice AI | $2.27/1M | $6.80/1M | $0.34/1M | — |
- APIMart$3.20
- CometAPI$4.80
- Ofox$6
- OrcaRouter$6
- Vercel AI Gateway$6
- APIYI$6
- LaoZhang API$6
- Atlas Cloud$6
- Jiekou.AI$6
- xAIOfficialFrom$6
- ZenMuxFrom$6
- CrossModelFrom$6
Specs
- Type
- Text
- Maker
- xAI
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 500K≈ 750 pages of text
- Max output
- 500K
- Capabilities
- Prompt caching, JSON, Tool calling, Vision
- Released
- Jul 8, 2026
- License
- proprietary
- Open weights
- No, API only
- Arena score
- 1553WebDev
- Monthly searches
- 3K
Alternatives to Grok 4.5
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Grok 4.5this model | $3.20/1M | 500K | 1553 | 22 |
 Gemini 4 Argon | $8/1M | 1.05M | 1673 | 26 |
| Kimi K3 | $8.28/1M | 1.05M | 1655 | 47 |
| GPT-6.1 Sol | $8/1M | 1.05M | 1749 | 27 |
 GLM-5.3 | $1.10/1M | 1.05M | 1623 | 49 |
| GPT-6 Sol | $8/1M | 1.05M | 1682 | 28 |
 Qwen3.8 2.4T A95B | $4.11/1M | 1M | — | 22 |
| Gemini 3 Flash | $2.40/1M | 1.05M | 1466 | 5 |
 Mistral Large 4 | $2.09/1M | 1.05M | 1543 | 13 |
More from xAI
Grok 4.5 FAQ
APIMart, at $3.20 /1M. 22 providers serve Grok 4.5; the table above lists every one with its price.
Grok 4.5 reads up to 500K tokens per request and writes up to 500K.
No. Grok 4.5 is only available through an API; xAI does not publish its weights.
22 API providers serve Grok 4.5. Compare their prices above, or open a provider to see everything it offers.
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