xAI · Released Aug 12, 2026
Grok 4.6
Grok 4.6 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM. It is succeeded by [Grok 4.7](/x-ai/grok-4.7).
- Top 12%GPQA Diamond
- Top 14%APEX-Agents
- Top 14%SimpleBench
- Top 14%OTIS Mock AIME
- Released
- Aug 12 2026
- Context window
- 500K 450K out
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $6.00
Where to run it
2 providers compared
Cheapest: xAI at $2.00 / $6.00 per 1M input / output tokens — 50% less than the priciest option.
| Provider | Input | Output | Cache read | Context | Max output | Uptime | vs. best |
|---|---|---|---|---|---|---|---|
| xAIzdr | $2.00 | $6.00 | $0.50 | 500K | 450K | 99.8%24h | Cheapest |
| xAI | $2.00 | $6.00 | $0.50 | 500K | 450K | 99.5%24h | Cheapest |
| xAIzdr/us | $2.20 | $6.60 | $0.55 | 500K | 450K | 100%24h | +10% |
| Amazon Bedrockus-west-2 | $2.20 | $6.60 | $0.55 | 500K | 450K | 100%24h | +10% |
| xAIzdr/priority | $4.00 | $12.00 | $1.00 | 500K | 450K | 99.7%24h | +100% |
| xAIpriority | $4.00 | $12.00 | $1.00 | 500K | 450K | — | +100% |
Value
Price vs. performance
Grok 4.6 Other xAI Other labs Value frontier · GPQA Diamond vs. input price per 1M tokens (log scale) · Drag to pan, pinch or Ctrl + scroll to zoom, double-click to zoom in.
Benchmarks
23 benchmark scores
| Benchmark | Score | Rank | Leader |
|---|---|---|---|
| FrontierSWESoftware engineering · Ultra-long-horizon engineering tasks with a 20-hour budget each | 25.3% | #14of 19 | GPT-6 Astra65.5% |
| DeepSWESoftware engineering · Original long-horizon tasks across active open-source repos | 67.5% | #9of 26 | GPT-6 Astra74.1% |
| CursorBenchSoftware engineering · Ambiguous multi-file tasks drawn from real Cursor sessions | 41.4% | #11of 16 | Claude Opus 5.557.8% |
| FrontierCodeSoftware engineering · Mergeable fixes for hard open-source issues | 48.0% | #9of 41 | Claude Opus 5.554.6% |
| SciCodeSoftware engineering · Research-coding problems from the natural sciences | 56.5% | #20of 93 | Claude Opus 5.566.9% |
| APEX-AgentsAgents & computer use · Long professional tasks in banking, consulting and law | 65.3% | #7of 51 | Gemini 4 Argon82.4% |
| Vending-Bench 2Agents & computer use · Run a simulated vending business for a year (final balance) | $9,047 | #10of 61 | GPT-6 Astra$15,515 |
| GDP.pdfWriting & content · Answer questions about real professional PDFs | 17.2% | #26of 38 | GPT-6.1 Sol35.0% |
| SimpleQA VerifiedWriting & content · Factual accuracy on 1,000 short questions | 49.3% | #27of 66 | Gemini 4 Argon76.0% |
| WebDev ArenaDesign & visual · People vote on which model builds the better website (Elo) | 1618 | #15of 88 | Claude Opus 5.51820 |
| Blueprint-Bench 2Design & visual · Turn apartment photos into 2D floor plans | 33.2% | #12of 32 | Gemini 4 Argon54.4% |
| Furniture AssemblyDesign & visual · Spot mistakes in photos of IKEA builds | 40.0% | #16of 34 | Claude Opus 5.583.3% |
| GPQA DiamondReasoning & knowledge · PhD-level biology, chemistry and physics questions | 94.0% | #11of 92 | Gemini 4 Argon96.4% |
| ARC-AGI-2Reasoning & knowledge · Few-shot abstract reasoning on grid puzzles | 67.1% | #24of 63 | GPT-6 Astra95.0% |
| ARC-AGI-1Reasoning & knowledge · Pattern induction from input–output examples | 87.5% | #36of 63 | Gemini 4 Argon98.5% |
| SimpleBenchReasoning & knowledge · Common-sense trick questions about space, time and people | 75.9% | #6of 43 | Claude Fable 581.9% |
| CritPtReasoning & knowledge · Open-ended, research-level physics problems | 19.7% | #25of 96 | GPT-5.6 Sol32.3% |
| Chess PuzzlesReasoning & knowledge · Find the single best move in 100 new puzzles | 33.0% | #45of 70 | GPT-6 Astra76.0% |
| LMCAReasoning & knowledge · Judge the quality of conceptual arguments like experts | 48.4% | #29of 96 | Claude Sonnet 5.568.3% |
| FrontierMathMaths · Expert-written problems, undergrad to early research (tiers 1–3) | 66.0% | #31of 72 | GPT-6.1 Sol93.7% |
| FrontierMath Tier 4Maths · Exceptionally hard research-level problems | 31.7% | #26of 62 | GPT-6.1 Sol100.0% |
| ProofBenchMaths · Graduate maths proofs verified in Lean 4 | 51.0% | #30of 70 | Claude Sonnet 5.5100.0% |
| OTIS Mock AIMEMaths · Competition-style problems harder than MATH Level 5 | 99.2% | #12of 90 | Gemini 4 Argon100.0% |
Specs
Details
- Model ID
x-ai/grok-4.6- Developer
- xAI
- Release date
- Aug 12, 2026 ·
- Context window
- 500,000 tokens
- Max output
- 450,000 tokens
- API price
- $2.00 / $6.00 per 1M input / output tokens
- Providers
- 2
- Input types
- text, image, file
- Reasoning
- Yes
- Tool calling
- Yes
- Open weights
- No
- Free tier
- No
Release date, prices and providers from OpenRouter's catalog; buying directly from a provider can cost a little differently. Uptime is the share of OpenRouter requests each provider served over the last day. Benchmark scores are the best result per benchmark from Epoch AI, licensed CC BY 4.0. Rank counts every model tracked here with a score.