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SpaceXAI: Grok 4.6

x-ai/grok-4.6

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Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM. It is succeeded by Grok 4.7.

Modalities

In / Out Price

$2 / $6per 1M

Context

500K

Released

Aug 12, 2026

Compare
BenchmarksProvidersPricingPerformanceUptimeAppsActivityFAQExplore

Benchmarks

Scores on standardized evaluations and this model’s own outputs on shared benchmark prompts. Higher percentages are better — and each rank shows where this model lands among the models evaluated on that source.

Benchmark score summary for SpaceXAI: Grok 4.6 (Artificial Analysis and Design Arena)
SourceBenchmarkScore
Artificial AnalysisGrok 4.6 (high) Intelligence Index44.3
Artificial AnalysisGrok 4.6 (high) Coding Index76.8
Artificial AnalysisGrok 4.6 (high) Agentic Index53.0
Artificial AnalysisGrok 4.6 (high) GPQA Diamond94.9%
Artificial AnalysisGrok 4.6 (high) HLE42.9%
Artificial AnalysisGrok 4.6 (high) AA-LCR80.3%
Artificial AnalysisGrok 4.6 (high) GDPval-AA55.3%
Artificial AnalysisGrok 4.6 (high) CritPt17.1%
Artificial AnalysisGrok 4.6 (high) SciCode56.5%
Artificial AnalysisGrok 4.6 (high) AA-Omniscience Accuracy48.2%
Artificial AnalysisGrok 4.6 (high) AA-Omniscience Non-Hallucination Rate65.7%
Design ArenaGrok 4.6 Agents Arena Agenticgamedev Elo1210
Design ArenaGrok 4.6 Agents Arena Androidnative Elo1302
Design ArenaGrok 4.6 Agents Arena Full Stack Elo1274
Design ArenaGrok 4.6 Agents Arena Htmlslides Elo1253
Design ArenaGrok 4.6 Agents Arena Mobile Apps Elo1268
Design ArenaGrok 4.6 Agents Arena Python-Pptxslides Elo1242
Design ArenaGrok 4.6 Agents Arena Webapps Elo1255
Design ArenaGrok 4.6 Models Arena 3D Elo1304
Design ArenaGrok 4.6 Models Arena Asciiart Elo1297
Design ArenaGrok 4.6 Models Arena Code Categories Elo1306
Design ArenaGrok 4.6 Models Arena Data Visualization Elo1301
Design ArenaGrok 4.6 Models Arena Game Development Elo1320
Design ArenaGrok 4.6 Models Arena SVG Elo1261
Design ArenaGrok 4.6 Models Arena UI Component Elo1304
Design ArenaGrok 4.6 Models Arena Website Elo1301

Providers

Different companies host the same model. OpenRouter routes your request to one of them based on the routing mode you pick — Balanced (price + speed), Nitro (fastest), Floor (cheapest), or Exacto (highest tool-calling accuracy).

Pricing

The average price customers actually pay for this model, next to the prices providers post. Caching and discounts mean the price actually paid is often well below the listed one.

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better).

Uptime

Uptime is the percentage of the past 3 days that at least one provider was responding to requests. Availability is the percentage of time that inference was successfully served. OpenRouter continuously monitors and uses the next-best provider when one returns an error.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

Activity

Token volume and request traffic to this model over time.

Quick Start

Drop-in code to call this model. OpenRouter's API is OpenAI-compatible — most SDKs work by just swapping the base URL. The only thing that changes between models is the model slug below.

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Priority
$4.00$12.00$1.00----
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Throughput

138tok/s

P50, best across providers

Latency

0.64s

P50, best provider

Uptime (3d)The model was reachable. Request routed to a provider.

100.00%

Availability (3d)The model returned inference from any provider. Errors and empty responses count against it.

98.83%

Availability over the last 3 days

Last 72 hours
Availability 98.83%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
97.80%
Without Routing
95.77%

When an error occurs in an upstream provider, we can recover by routing to another healthy provider, if your request filters allow it. You can access per-provider uptime data programmatically through the Endpoints API. Learn more about our load balancing and customization options.

Frequently asked questions

Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM. It is succeeded by Grok 4.7.

Grok 4.6 costs $2.00/M input tokens and $6.00/M output tokens, with separate rates for Cache Read at $0.50/M tokens and Web Search at $5.00/1K calls.

Grok 4.6 has a 500,000 token context window.

Yes. Grok 4.6 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.

Grok 4.6 accepts text, images, and files such as PDFs as input and returns text.

Grok 4.6 is served by 2 providers on OpenRouter: SpaceXAI and Amazon Bedrock. Requests are routed to the best available provider, with automatic failover to the others, and you can pin or exclude providers with provider routing.

Grok 4.6 was released on August 12, 2026.