Grok 5 API Pricing: What to Expect Before Launch (xAI 2026)
·5 min read
TL;DR — Grok 5 Pricing Outlook
xAI's Grok 5 is currently in training and has no public API as of June 2026. Based on leaked specs (~6 trillion parameters, 2M token context) and xAI's historical pricing pattern, Grok 5 is expected to launch in Q3 2026 at a price point in the $2–$5 per million input tokens range for the standard tier — similar to or slightly above Grok 4.3's current $1.25/1M official rate. All specs below are unconfirmed; xAI has not announced pricing or a launch date.
Current Grok Lineup — Confirmed API Prices
| Model | Input / 1M tokens | Output / 1M tokens | Status |
|---|---|---|---|
| Grok 4.3 | $1.25 | $2.50 | ✅ Live API |
| Grok 4 | $1.25 | $2.50 | ✅ Live API |
| Grok Build 0.1 | $1.00 | $2.00 | ✅ Live API |
| Grok 5 | ~$2–$5 (estimated) | ~$6–$15 (estimated) | ⏳ In training |
Grok 4.3 official prices from xAI API, verified by ComputeUnion June 2026. Grok 5 estimates are speculative — no official pricing exists.
What Is Grok 5?
Grok 5 is xAI's next-generation frontier model, confirmed to be in active training as of June 2026. The most reliable signal is the prediction market data: Grok 5 had not launched by May 31, 2026 (judged "NO"), with multiple tracking sources placing the expected release window in Q3 2026 (July–September).
⚠️ All Grok 5 specs in this article come from leaks and third-party analysis. xAI has not officially confirmed any parameters, capabilities, or pricing for Grok 5.
Leaked Specs: Grok 5 vs Grok 4.3 vs Frontier Competitors
| Specification | Grok 5 (leaked) | Grok 4.3 | GPT-5.5 | Claude Opus 4.8 |
|---|---|---|---|---|
| Parameters | ~6 trillion | ~3 trillion (est.) | Undisclosed | Undisclosed |
| Context window | ~2M tokens (rumored) | 131K tokens | 1M tokens | 1M tokens |
| Release status | In training | Live | Live | Live |
| Official input price / 1M | TBA | $1.25 | $5.00 | $5.00 |
| Official output price / 1M | TBA | $2.50 | $30.00 | $25.00 |
| Cheapest relay / 1M input | TBA | ~$0.17 | ~$0.21 | ~$0.14 |
Why Grok 4.3 at $1.25/1M Matters for Grok 5 Pricing
xAI's pricing history shows a pattern: each generation launches at a comparable or slightly higher price than the previous flagship, then relay stations undercut by 80–90% within weeks. Grok 4.3's official price of $1.25 input / $2.50 output is already competitive — half of GPT-5.5 and Claude Opus 4.8's official rates.
If Grok 5 is a significantly more capable model (6T parameters vs ~3T for Grok 4), xAI may price it higher — likely in the $2–$5/1M input range. But xAI has historically been aggressive on pricing to gain market share, so a launch at $1.25–$2.50/1M would not be surprising. CN relay stations will likely offer Grok 5 at $0.20–$0.50/1M within the first month.
Should You Wait for Grok 5 or Use Grok 4.3 Now?
Use Grok 4.3 now if:
- You need a production-ready API today with stable pricing and documentation
- Your workload fits within Grok 4.3's 131K context window
- Cost matters: Grok 4.3 at $1.25/1M is already cheaper than GPT-5.5 or Claude Opus 4.8
Wait for Grok 5 if:
- Your application requires a context window larger than 1M tokens — Grok 5's rumored 2M would be the largest available
- You need the most capable reasoning model xAI can offer (6T parameters is a significant jump)
- Q3 2026 timeline is within your planning horizon
Author: yego | Sources: xAI official API docs, prediction market data (Manifold), third-party tracking (Overchat, Wavespeed). All Grok 5 specs are unconfirmed pending official xAI announcement. Last updated: June 23, 2026.
Frequently Asked Questions
When will Grok 5 be released?
No official date has been announced by xAI. Based on prediction market data and multiple tracking sources, the expected window is Q3 2026 (July–September). Grok 5 was confirmed not launched by May 31, 2026.
What will Grok 5 API pricing be?
No official pricing exists. Based on Grok 4.3's current rate of $1.25/1M input and xAI's historical pattern, estimates range from $2–$5/1M input for standard tier. CN relay stations typically undercut official pricing by 80–90% within the first month after launch.
How does Grok 5 compare to GPT-5.5?
Grok 5 is rumored to have ~6 trillion parameters (vs GPT-5.5's undisclosed count) and a 2M token context window (vs GPT-5.5's 1M). GPT-5.5 is live at $5/1M input; Grok 5 is still in training with no confirmed pricing.
Is Grok 4.3 worth using while waiting for Grok 5?
Yes. Grok 4.3 is available now at $1.25/1M input (official) or as low as $0.17/1M via CN relay stations — cheaper than GPT-5.5 ($5/1M) and Claude Opus 4.8 ($5/1M). For most workloads that fit within its 131K context window, Grok 4.3 offers strong price-to-performance today.
Will Grok 5 be available through relay stations at launch?
Based on Grok 3 and 4's pattern, CN relay stations typically add new xAI models within 1–4 weeks of official API availability. ComputeUnion will track Grok 5 pricing across all platforms as soon as it launches.