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Model details

Grok 4.6

Grok 4.6 is the successor in the Grok line that xAI announced on August the listed price, 2026, arriving just over a month after Grok 4.5. Third-party coverage positions the release as a deliberate shift away from the previous generation's emphasis on low token use and toward sustained, multi-step work. The model's marketed focus spans coding, visual web work on the web, and agent tasks that run longer than before, including research, analysis, code correction, and app development, with progress verification built into those longer flows rather than relying on a single pass.

In practical comparisons, Grok 4.6 does not settle into a simple ranking. It leads some of the creator-selected tests, while GPT-5.6 Sol and Claude Fable 5 lead others, and Artificial Analysis places Grok alongside Sol at a lower blended price. The trade-off buyers should weigh is that the higher-scoring Grok 4.6 answers later and costs more per measured task than Grok 4.5 once cached input, reasoning tokens, and extra output are accounted for, so the actual bill depends heavily on workload shape. Teams with long agentic pipelines and verified checkpoints stand to gain the most, while those with short, token-sensitive queries may find the earlier Grok 4.5 more economical.

OpenCode Zengrok-4.6grok

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Provider
OpenCode Zen
Model key
grok-4.6
Release date
Aug 12, 2026
Last updated
Aug 12, 2026
Knowledge cutoff
2026-02-01
AI SDK package
@ai-sdk/openai
Input modalities
Output modalities
Capabilities

Cost

Input token cost
$2.00
Output token cost
$6.00

Limits

Output tokens
500,000 tokens
Context window
500,000 tokens

Transparent token rates

Compare Grok 4.6 pricing

Rates are shown per one million tokens. Combined means one million input plus one million output tokens.

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Latest news about Grok 4.6

OpenCode Go

Coverage

IntuitionLabs profiles Grok 4.6 as a coding- and agent-focused frontier model released by xAI (operating as SpaceXAI) on August 12, 2026, with a 500,000-token context window, configurable reasoning effort, native function calling, and structured outputs. The piece draws on xAI's official release notes for pricing, conf The analysis echoes Artificial Analysis's GDPval-AA v2 Elo of 1753 for Grok 4.6, placing it second only to Claude Opus 5 on agentic real-world work and roughly half the turn count of Claude Opus 5 on long-horizon tasks. It positions Grok 4.6 as price-competitive with Claude Sonnet 5's input cost and undercutting Claude

OpenCode Zen

CoverageBenchmark

Layer3 Labs' guide, reviewed September 9, 2026, summarizes xAI's August 12, 2026 launch of Grok 4.6 as a model built for complex, long-running agentic and visual tasks, sustaining multi-step work across research, software development, and major project organization. xAI highlights improved multi-step reasoning, stronge The article tabulates xAI's official benchmark scores: AA Intelligence Index 61 (matching GPT-5.6 Sol), GDPVal-AA v2 1753 (above Grok 4.5 and GPT-5.6 Sol, close to Fable 5 Max at 1741), CursorBench v3.2 69.9% (above GPT-5.6 Sol's 67.2%, just below Fable 5 Max's 70.5%), DeepSWE v1.1 65.9% (up from Grok 4.5's 54%, below

DevPass (LLM Gateway)

Coverage

A developer-oriented long-form analysis from AI-Driven Lab (note.com) covering the Grok 4.6 launch dated August 12, 2026 by SpaceXAI, reportedly rebranded from xAI. The article frames Grok 4.6 as targeting coding, long-running agents, and visual/interactive work, with a Cursor co-announcement referenced and reorganized The write-up compiles benchmark positioning, pricing surfaces, and availability channels for Grok 4.6, and provides historical context on the xAI to SpaceXAI corporate restructuring. The piece is auto-translated from Japanese with an explicit accuracy disclaimer, and is a third-party user-published summary rather than

OpenCode Zen

Official sourceDocumentation

The OpenCode Go documentation explicitly lists Grok 4.6 as the first entry in the current model roster for its $10/month low-cost subscription tier, confirming availability of the model through the OpenCode provider ecosystem. According to the docs, OpenCode Go is designed primarily for international users, provides st The same page details that OpenCode Go was built by having the OpenCode team test a curated group of open models, coordinate with provider teams on optimal serving, and benchmark the model/provider combination before recommending it. Usage is intended for OpenCode and similar coding agents, with traffic monitored to pr

Abacus

CoverageBenchmark

Pragma-Code's enterprise review positions Grok 4.6 as an engine for autonomous agentic workflows, capable of remaining anchored across dozens of sequential file edits, test executions, and compiler feedback loops without drifting. The model achieves a record score of 1,753 points on GDPVal-AA v2 and 1,577 points on AA- The review details Grok 4.6's training approach, including SFT trajectory regeneration and agentic reinforcement learning, as drivers of its stress-test benchmark performance. A key capability highlighted is visual and interactive first-pass synthesis, where the model translates ambiguous product briefs into cohesive v

DevPass (LLM Gateway)

CoverageRelease Notes

AWS announced that Amazon Bedrock now supports SpaceXAI Grok 4.6 with Cross-Region Inferencing (CRI). The page is hosted on aws.amazon.com under the "What's New" feed dated August 19, 2026, and directly names SpaceXAI Grok 4.6 as the supported model. This gives developers a managed, enterprise-grade distribution channe While the supplied excerpt is truncated by AWS's cookie consent UI, the announcement establishes Bedrock as an additional official access path beyond the xAI API and named partner channels. Cross-Region Inferencing on Bedrock typically distributes requests across multiple AWS regions to improve availability and through

OpenCode Zen

CoverageRelease Notes

The Zed Preview 1.17.0 release notes, published August 19, 2026, explicitly document that Grok 4.6 was added to the OpenCode Zen provider integration alongside Claude Opus 5, Gemini 3.5 Flash Lite, Gemini 3.6 Flash, Gemini 3.7 Flash, Kimi K3, and Muse Spark 1.2. This is independent third-party corroboration, attributed The same release notes separately note that Kimi K3, Grok 4.5, Hy3, GPT 5.6 Luna, Qwen 3.8 Max, and GLM 5.3 were added to OpenCode Go, while an "ask user" tool was introduced to let the Agent prompt users through forms with selectable options or free-text input. Additional agent improvements included ChatGPT subscripti

GitHub Copilot

CoverageBenchmark

A DEV Community post by an agent-building developer provides the most technically detailed secondary account of Grok 4.6's training recipe. xAI describes a longer supplemental training run than Grok 4.5, using curated model-generated data for reasoning and advanced technical concepts, high-quality engineering data, and xAI did not confirm a parameter count, leaving conflicting reports (1.5T V9 base shared with Grok 4.5 vs. a larger 2T model) unresolved. The behavioral claim that matters most for developers: on longer trajectories, Grok 4.6 shows more self-testing and verification, checking its own work before proceeding. For visual a

DevPass (LLM Gateway)

CoverageBenchmark

An independent benchmark breakdown published on Medium analyzing Grok 4.6 against GPT-5.6 Sol and Fable 5 Max using vendor-published numbers. The author reports Grok 4.6 wins 6 of 9 shared benchmarks versus GPT-5.6 Sol and 3 of 10 against Fable 5 Max, with both losses to Sol concentrated in agent and terminal work, not Pricing is restated at $2 per million input tokens and $6 per million output tokens, and availability is listed across Cursor, SpaceXAI Grok Build, the xAI API, OpenRouter, Vercel, and Cloudflare from August 12, 2026. The analysis is structured third-party evaluation, though the underlying benchmark figures are vendor-

xAI

CoverageBenchmark

Geotoolbox's explainer describes Grok 4.6 as xAI's frontier model released on August 12, 2026, built for long-running agents, coding, and knowledge work, landing about a month after Grok 4.5 as the current flagship. The post emphasizes that Grok 4.6 is not a bigger model than 4.5 — xAI describes a longer round of train The explainer walks through Grok 4.6's specs, benchmarks (with attention to losses), real cost beyond the headline price, comparisons against Grok 4.5, GPT-5.6, and Claude, and access channels including the xAI API, Cursor, and Grok Build. It frames the release as relevant to whether AI assistants can keep current with

xAI

CoverageBenchmark

Emergent.sh's benchmark deep-dive reports that Grok 4.6 scores 61 on the Artificial Analysis Intelligence Index, tying GPT-5.6 Sol and trailing Claude Opus 5 (63) and Claude Fable 5 (62). Despite being pitched as a model for agentic coding, the benchmarks show it wins the knowledge-work evaluations (GDPval-AA, AA-Brief Artificial Analysis independently measured a 65.7% non-hallucination rate for Grok 4.6 — a row xAI never published, which the review argues matters more for customer-facing work than any coding score. On efficiency, Grok 4.6 finished long agentic tasks in about 53 turns against Claude Opus 5's 103 turns, at $0.84 per t

xAI

CoverageBenchmark

According to AIToolsReview, Grok 4.6 launched on 12 August 2026, with independent testing from Artificial Analysis placing it at 61 on the Intelligence Index — exactly tying GPT-5.6 Sol, one point behind Claude Fable 5 and two behind Claude Opus 5, and representing a five-point jump over Grok 4.5 in just over a month. The same review notes that independent testing also found a meaningfully higher confident-fabrication rate than Grok 4.6's benchmark parity with GPT-5.6 Sol might suggest. It frames the release as SpaceXAI's fourth major Grok release since the company's February 2026 merger with SpaceX, and its second since the July re

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