Grok 4.5
xAI's intelligent coding model for agentic software, engineering, and workflow tasks, with configurable reasoning and visual input support.
Overview
Recommended use cases and a precise technical profile, generated from the same reviewed model record used throughout this page.
Plan, implement, debug, and validate complex engineering tasks across codebases and tool-driven environments.
Work through science, engineering, mathematics, and other evidence-heavy professional problems.
Combine reasoning, structured outputs, and function calls to complete multi-step operational workflows.
| Model ID | grok-4.5 | Provider | xAI |
| Protocol | OPENAI compatible | DIT availability | 1 active route |
| Input | Text, Image | Output | Text |
| Context window | 500,000 tokens | Maximum output | 128,000 tokens |
| Released | Jul 8, 2026 | Knowledge cutoff | Not published |
| Endpoint | Path | Status |
|---|---|---|
| Chat Completions | /v1/chat/completions | Supported |
| Responses | /v1/responses | Supported |
Providers
Compare DIT market routing with the official upstream reference across price, speed, and availability. Supplier identities remain private.
| Provider | Input /M | Output /M | Cache read /M | Latency | Throughput | Uptime |
|---|---|---|---|---|---|---|
DIT Market 40% off Aggregated supply · 1 active route | —Awaiting data | —Awaiting data | —< 50 requests | |||
xAI official Reference Direct upstream · reviewed list price | $2 | $6 | $0.3 | —Not published | —Not published | Not publishedNo status source |
Prices are USD per 1M tokens. DIT performance and uptime appear only after 50 eligible requests; supplier identities and customer traffic remain private.
Pricing
Compare DIT market rates directly with reviewed official prices so savings remain visible and auditable.
| Usage | Official | DIT market | Saving | Billing basis |
|---|---|---|---|---|
| Input tokens | $2 | $1.2 | ~40% | Per 1M tokens |
| Output tokens | $6 | $3.6 | ~40% | Per 1M tokens |
| Cached input | $0.3 | $0.18 | ~40% | Per 1M cached tokens |
Requests above 200K context use xAI's higher-context pricing tier.
Performance
Latency, throughput, activity, and request success use privacy-safe DIT runtime aggregates only when the eligibility threshold is met.
DIT runtime metrics are pending
Quick Start
A copy-ready request for the compatible DIT endpoint using this model's reviewed identifier.
curl https://api.dit.ai/v1/chat/completions \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-4.5",
"messages": [{"role":"user","content":"Explain dynamic model routing."}]
}'Sources
Field-level provenance keeps pricing, limits, capabilities, and benchmarks independently reviewable.
| Source | Type | Covers | Checked |
|---|---|---|---|
| xAI Grok 4.5 model documentation ↗ | Official | Technical profile, Context, Modalities, Pricing, Capabilities, Aliases, Reasoning effort, Endpoint, Not supported | Sep 1, 2026 |
| xAI API release notes ↗ | Official | Released, Usage rules | Sep 1, 2026 |
Official sources take priority. Third-party metadata is retained only when its field and review date are shown.
Models like Grok 4.5
Reviewed models ranked by capability overlap, protocol compatibility, and context similarity.
Frequently asked questions
Answers use the same reviewed facts and pricing fields presented in the tables above.
What is Grok 4.5?+
xAI's intelligent coding model for agentic software, engineering, and workflow tasks, with configurable reasoning and visual input support.
How much does Grok 4.5 cost?+
The reviewed official rate is $2 per 1M input tokens and $6 per 1M output tokens. DIT pricing is shown only when a live DIT route exists.
What is the context length of Grok 4.5?+
Grok 4.5 supports a reviewed context window of 500,000 tokens and up to 128,000 output tokens.
What capabilities does Grok 4.5 support?+
Reviewed capabilities include Reasoning, Function calling, Structured outputs, Vision, Agentic coding. Consult the linked official documentation for endpoint-specific limits.
What inputs and outputs does Grok 4.5 support?+
Reviewed input modalities: Text, Image. Reviewed output modalities: Text.
Which API endpoints and reasoning levels does Grok 4.5 support?+
Grok 4.5 is documented for Chat Completions, Responses. Reasoning effort can be set to low, medium, high, with high as the documented default.
Is Grok 4.5 available on DIT?+
Grok 4.5 currently has 1 active route. DIT selects eligible supply by price and health, with automatic failover when another route is available.
When was Grok 4.5 released?+
Grok 4.5 was released on Jul 8, 2026.