Grok 4
by xAIChat
Grok model for agentic tool use, reasoning, coding, and live assistance
- Context
- 262K tokens
- Max output
- 256,000 tokens
- Parameters
- 3T (total or active not stated)
- Released
- 2025-07-09
- Weights
- Closed
xai/grok-4 · also seen as x-ai/grok-4
Specifications
Full facts as recorded, incl. what is unknown.
- Released
- 2025-07-09
- Weights
- Closed
- Input
- Text
- Output
- Text
- Context window
- 262,000 max across endpoints
- Max output
- 256,000
- Providers
- 3 + 6 gateways, not counted as providers
- Epoch Capabilities Index
- 146.4 ± 1.8 against price
- Direct price range
- $3.00–$7.20 in · $15–$36 out per 1M tokens · across all 3 providers
More details
- Last updated
- 2025-07-10
- Knowledge cutoff
- 2025-07
- Parameters
- 3T (total or active not stated)
- Developer country
- United States of America
- Training compute
- 5.0×10²⁶ FLOP
Capabilities
Across all endpoints: supported if any endpoint supports it.
- Tool calling
- Parallel toolsunknown
- Structured output
- Reasoning
- Image input
- PDF input
- Audio input
- Audio outputunknown
- Video input
- Prompt cachingunknown
- Web search
- Computer useunknown
- System messages
- Assistant prefillunknown
- Temperature
- Streaming
- Attachments
Endpoints
One row per provider and variant; gateways are listed separately.
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Price history
No change since 19 Oct 2026. The cheapest direct price has been $3.00 in / $15 out per 1M tokens at Azure on every data refresh since then.
Tracked from 19 Oct 2026. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON
Cost calculator
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Similarly priced models
Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).
| Model | Blended/1M | In/1M | Out/1M | Context | vs Grok 4 |
|---|---|---|---|---|---|
| Claude Sonnet 3.5Anthropic | $5.00 | $3.00 | $15 | 200K | +0% |
| Claude Sonnet 3.7Anthropic | $5.00 | $3.00 | $15 | 200K | +0% |
| Claude Sonnet 4.6Anthropic | $5.00 | $3.00 | $15 | 1M | +0% |
| Sonar ProPerplexity | $5.00 | $3.00 | $15 | 200K | +0% |
| Sonar Pro SearchPerplexity | $5.00 | $3.00 | $15 | 200K | +0% |
| Grok 3xAI | $5.00 | $3.00 | $15 | 131K | +0% |
| MiMo-V2.6-Pro-UltraSpeedXiaomi | $5.08 | $4.35 | $8.70 | 1.05M | +2% |
| Qwen 3.8 Max PrimeAlibaba (Qwen) | $5.33 | $4.00 | $12 | 1M | +7% |
More from xAI
Newest xAI models in the catalogue. All xAI models
| Model | Released | Context | Listed price |
|---|---|---|---|
| Grok Imagine Video 1.5 Lite | 2026-10-01 | 1K | unpriced |
| Grok 4.7 | 2026-09-21 | 500K | from $1.60 |
| Grok 4.6 | 2026-08-12 | 500K | from $2.00 |
| Grok Imagine Image 2.0 | 2026-08-07 | 65.5K | unpriced |
| Grok Voice STT 1.0 | 2026-08-04 | 15K | unpriced |
| Grok STT 1.0 | 2026-07-23 | — | unpriced |
| Grok 4.5 | 2026-07-08 | 500K | from $2.00 |
| Grok Imagine Video 1.5 | 2026-05-30 | 1K | unpriced |
Heads up: prices are indicative list rates scraped from provider pricing pages; verify with the provider before relying on them. Report incorrect data for this model