Grok Latest
xAI · released Jul 8, 2026
- Type
- Proprietary
- Input
- $3.00
- Output
- $15.00
- Cached
- Not published
List price · per 1M tokens · xAI at 256K context · source ↗
Our take
Written Aug 2, 2026Grok Latest is xAI's proprietary flagship generalist, released in July 2026, that accepts text, images and files in a single prompt of up to 500,000 tokens. It is a long-context specialist with no measured quality scores in our data and a wide gap between its cheapest third-party access and its direct vendor pricing.
Pick this when you need the longest context window we hold for this model class — half a million tokens — for extended-document or long-conversation workflows, or for multimodal analysis combining images and files in one prompt. Skip it if you rely on benchmark scores to validate quality, if you need to self-host or avoid proprietary lock-in, or if you are cost-sensitive and cannot route through third-party providers.
The case for it
- Exceptional context length for long-document and extended-conversation workflows, at 500,000 tokens.
- Cheaper third-party access than direct vendor pricing, with one tracked route costing roughly a third less on input and well under half on output.
The case against it
- Direct pricing is steep, especially for output tokens — the vendor's own rate is two and a half times the cheapest third-party output rate.
- No measured quality scores to validate performance claims; all capabilities are unverified in our data.
- Parameter count and architecture are undisclosed, so there is no basis to assess efficiency or model class.
How good is it?
We hold no score for this model.
We look for every model we track on every board we watch, and none of them has turned up Grok Latest — so there is no intelligence, coding, agentic or writing score to show you, not a low one, none.
Or rent it from someone else
Why this differs from the header. The strip above quotes xAI's own list price. This is the cheapest live offer at the widest standard context we hold, whoever is serving it — a reseller undercutting a lab is ordinary commerce, not an error.
- per 1M tokens
- $2.00 in / $6.00 out
- Context served
- 500K
- Throughput
- Not measured
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouter | $2.00 / $6.00 | 500K | not measured | Unknown | Unknown | Unknown |
| xAI | $3.00 / $15.00 | 256K256K out | not measured | Unknown | Unknown | Unknown |
xAIAcross the 2 listings we hold: 0 say they do not train on prompts, 0 say they do and 2 do not say. 0 appear in the zero-retention registry we check; the rest are unknown to us rather than confirmed either way.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
- ✓
- Supported
- ✗
- Not supported
- Not published
- host gave no parameter list
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| OpenRouter | ✓ | ✓ | ✓ |
| xAI |
Tool calling: 1 of 2 listings says yes, 1 publishes no parameter list. JSON output: 1 of 2 listings says yes, 1 publishes no parameter list. Strict schema: 1 of 2 listings says yes, 1 publishes no parameter list.
When we formed this view
Dates behind this page
Prices last checked 9d ago
What we do not know about this model yet
- No board we watch has turned up a score, so we hold no quality figures at all.
- 1 of 2 listings publish no parameter list, so what their API accepts is unknown to us.
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 2 of 2 listings do not say whether they train on prompts.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
Commercial API terms. We hold no licence record for this model, so there is nothing to summarise here.
Identifiers
- Modality record
- text+image+file->text
- Catalogue slug
- x-ai-grok-latest