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Favicon for x-ai

SpaceXAI: Grok 4.6

x-ai/grok-4.6

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Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

Modalities

In / Out Price

$2 / $6per 1M

Context

500K

Released

Aug 12, 2026

Compare
ProvidersPricingPerformanceUptimeBenchmarksAppsActivityFAQExplore

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.

Benchmarks

Scores on standardized evaluations. Higher percentages are better — and rank percentile shows where this model lands among all models on OpenRouter.

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 Elo1301
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 Elo1267
Design ArenaGrok 4.6 Agents Arena Python-Pptxslides Elo1242
Design ArenaGrok 4.6 Agents Arena Webapps Elo1264
Design ArenaGrok 4.6 Models Arena 3D Elo1305
Design ArenaGrok 4.6 Models Arena Asciiart Elo1297
Design ArenaGrok 4.6 Models Arena Code Categories Elo1309
Design ArenaGrok 4.6 Models Arena Data Visualization Elo1303
Design ArenaGrok 4.6 Models Arena Game Development Elo1321
Design ArenaGrok 4.6 Models Arena SVG Elo1263
Design ArenaGrok 4.6 Models Arena UI Component Elo1305
Design ArenaGrok 4.6 Models Arena Website Elo1304

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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--

Throughput

83tok/s

P50, best across providers

Latency

1.14s

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.

99.72%

Availability over the last 3 days

Last 72 hours
Availability 99.72%
3 Days Ago2 Days AgoYesterdayNow

Availability over the last 24 hours

OpenRouter Availability
99.45%
Without Routing
97.31%

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.

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Frequently asked questions

Grok 4.6 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.

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.