Grok 4.8 API: Release Status, Pricing, and What You Can Use Today
Is Grok 4.8 released? Check the October 13, 2026 API status, unconfirmed 2.5T and C++ claims, and live Grok 4.7 routes from $0.1191/$0.3574 per 1M tokens—up to about 94% off.
Published 2026-10-13
As of October 13, 2026, Grok 4.8 has no confirmed public release date, official API model ID, or published token price in the official sources checked for this article. The official model catalog and release notes list Grok 4.7, announced on September 21, 2026, with a 500K-token context window and a headline price of $2 input / $6 output per million tokens. Those are Grok 4.7 specifications, not a confirmed Grok 4.8 price or context window.
If you need a Grok API now, the Grok 4.7 marketplace card is the actionable option. Checked October 13, 2026: APIMaster has 4 active Grok 4.7 routes, starting at $0.1191 input / $0.3574 output per 1M tokens, up to about 94% off the $2/$6 reference price. Only routes with status=1 are counted; use the marketplace card as the source of truth.
| Model ID | Reference price (per 1M input / output) | Current APIMaster price | Active routes | Discount | Model card |
|---|---|---|---|---|---|
grok-4.8 (unconfirmed ID) |
Not announced | No public route | 0 | — | Check availability |
grok-4.7 |
$2 / $6 | From $0.1191 / $0.3574 | 4 | Up to about 94% off | Grok 4.7 |
grok-4.6 |
$2 / $6 reference | From $0.1191 / $0.3574 | 6 | Up to about 94% off | Grok 4.6 |
The Grok 4.8 link is an availability filter, not a promise that the model can be purchased or called. No official or community price estimate is presented as an APIMaster selling price.
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Grok 4.8 release date: what is actually confirmed?
There is no confirmed Grok 4.8 launch date in the sources checked on October 13, 2026. The official model catalog identifies Grok 4.7 as the flagship, and the official release notes contain no Grok 4.8 release entry at the check.
This is a dated verification result, not a claim that private testing cannot exist. A reliable public-launch update should have an official announcement or release-note entry, a documented model ID, and an access path developers can actually use. For production planning, also confirm billing, rate limits, supported endpoints, and availability for your account.
The Grok 4.7 announcement is dated September 21, 2026. A Grok 4.7 rollout date must not be relabeled as the Grok 4.8 release date.
Is there a public Grok 4.8 API or model ID?
No public Grok 4.8 API entry was verified. The official catalog has no documented grok-4.8 entry, and APIMaster's live marketplace lookup returned no routes for that filter on October 13, 2026.
A string in a model picker, repository, configuration file, or screenshot is weaker evidence than a working, documented API. It could be a placeholder, private entitlement, test alias, or planned integration. Without the original artifact and a reproducible request, even the nature of that string remains unverified.
Do not change a production request from grok-4.7 to grok-4.8 just because the names look sequential. Check the official catalog and your provider's model card first. A third-party label alone does not establish a model's identity.
Grok 4.8 pricing: unknown; Grok 4.7 is available now
Grok 4.8 pricing has not been confirmed. The familiar $2/$6 number belongs to the current Grok 4.7 headline token price. It is a comparison baseline, not a quote for a future model. Likewise, cached-input, long-context, tool, and priority-processing charges must be checked separately rather than assumed to match a headline price.
At the October 13 check, the Grok 4.7 card had 4 active routes spanning approximately $0.1191–$0.5948 input / $0.3574–$1.7843 output per million tokens. The Grok 4.6 card had 6 active routes spanning $0.1191–$0.5966 input / $0.3574–$1.7898 output. These are route-level price ranges, not one guaranteed price for every account and workload.
For scale, 1M input tokens plus 1M output tokens costs $8 at the $2/$6 reference rates, versus approximately $0.4765 at the lowest checked APIMaster route. The discount uses the underlying unrounded values: 1 - 0.1191256 / 2 and 1 - 0.3573768 / 6, both approximately 94.04%. This illustration excludes other billable items and future price changes.
Grok 4.8 parameters, C++ training stack, and RL claims
Treat the 2.5T parameters, new C++ training stack, and September 14 pretraining-to-RL timeline claims as unverified in this article. The original primary posts for these claims were not independently verified during this check, and the public API documentation reviewed does not establish them as Grok 4.8 specifications.
| Claim | Verification status here | What developers should conclude |
|---|---|---|
| Roughly 2.5 trillion parameters | Not independently verified | Do not use the number as a confirmed architecture specification. |
| A new C++ training stack | Not independently verified | A training-stack claim does not establish supported API features or latency. |
| Pretraining completes, followed by reinforcement learning | No verified Grok 4.8 schedule | Training milestones do not supply a public launch date. |
| A noticeable improvement over Grok 4.7 | No verified Grok 4.8 evaluation | Wait for attributable results and test your own workload. |
Even a verified pretraining milestone would not establish that post-training, evaluation, safety work, or API deployment is complete. Parameter count alone also does not establish coding quality, reliability, speed, or cost. Comparisons with Opus, Astra, or Fable require matched tasks and evaluation settings, not a version-number prediction.
Grok 4.8 vs Grok 4.7: should you wait?
For a project that needs a working API today, use a verified Grok 4.7 route and keep the model selection configurable. Waiting is reasonable only if your project can tolerate an unknown release date and you have a specific requirement the current model does not meet.
| Decision point | Grok 4.8 | Grok 4.7 |
|---|---|---|
| Public release | Not confirmed in checked sources | Official announcement on September 21, 2026 |
| Documented model ID | Not confirmed | grok-4.7 |
| Context window | Not confirmed | 500K tokens in the official catalog |
| Headline token pricing | Not confirmed | $2 input / $6 output per 1M tokens |
| APIMaster availability | No public route at the check | 4 active routes at the check |
| Relative performance | No verified comparison | Evaluate the released model on your own tasks |
The official Grok 4.7 announcement emphasizes coding, knowledge work, sustained execution, and self-verification. Those are the vendor's claims about 4.7, not proof of what 4.8 will deliver. See the Grok 4.7 API guide for the released model; use the live model card for current prices rather than an older article's snapshot.
How to buy Grok API access and make a request
- Register for APIMaster.
- Compare the Grok 4.7 routes, including their price, availability, and any client restrictions.
- Create an API key and store it in an environment variable.
- Call
grok-4.7throughhttps://apimaster.ai/v1; do not substitute an unconfirmed Grok 4.8 ID.
This request uses the available Grok 4.7 model, not Grok 4.8:
curl "https://apimaster.ai/v1/chat/completions" \
-H "Authorization: Bearer $APIMASTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-4.7",
"messages": [
{"role": "user", "content": "Review this deployment plan and identify missing verification steps."}
]
}'
Before scaling, compare a small representative set of tasks for completion quality, latency, and billed tokens. Keep the model ID outside application logic so a future verified release can be evaluated without rebuilding the integration. A Grok subscription, an official API account, and an APIMaster account are separate access and billing arrangements.
FAQ
Has Grok 4.8 been released?
No public release was confirmed in the official model catalog and release notes checked on October 13, 2026. Grok 4.7 is the documented flagship at this check.
What is the Grok 4.8 release date?
No confirmed date was found. A claimed training milestone or a model-picker entry is not an official public launch schedule.
What is the Grok 4.8 API model ID?
No official ID was verified. grok-4.8 is only the candidate name used for the marketplace availability check here; the callable example uses grok-4.7.
How much will Grok 4.8 cost?
Its official API price is unconfirmed. $2 input / $6 output per 1M tokens is the Grok 4.7 headline price, not a Grok 4.8 offer.
Does Grok 4.8 have 2.5 trillion parameters?
That figure was not independently verified against an original primary post or official model specification during this check. It is not presented as an established fact.
Does Grok 4.8 have a 500K context window?
No Grok 4.8 context window was verified. The 500K-token figure is documented for Grok 4.7.
Why might Grok 4.8 appear in Cursor or a repository?
A string could represent a placeholder, private test, or planned integration. Without the original evidence and reproducible access, it does not confirm a generally available Grok 4.8 API.
Which Grok API can I use on APIMaster today?
At the October 13, 2026 check, Grok 4.7 had 4 active routes from $0.1191 input / $0.3574 output per 1M tokens, up to about 94% off the $2/$6 reference price. Grok 4.6 had 6 active routes. The live marketplace cards determine current pricing and availability.
Sources and update policy
Checked October 13, 2026. Primary release evidence: official Grok models and pricing, official release notes, and the September 21 Grok 4.7 announcement. Live route data: Grok 4.8 lookup, Grok 4.7 lookup, and Grok 4.6 lookup. Grok 4.6's $2/$6 table baseline is the marketplace's configured reference price. Claims without a verified original source are separated from confirmed specifications.
This page can be updated when an official announcement, documented model ID, pricing, and verifiable public access become available; it does not promise a release date or automatic notification.
Need Grok now? Register, create an API key, and call grok-4.7 through https://apimaster.ai/v1. Compare the current Grok 4.7 routes for up to about 94% off the checked reference price; the marketplace card is the source of truth.