---
title: "SpaceXAI: Grok 4.6 — price, capability and what beats it · Undominated.ai"
canonical: https://undominated.ai/models/x-ai__grok-4.6/
description: "SpaceXAI: Grok 4.6: $2.00/M in, $6.00/M out. Independent capability scores, context-tier pricing, and the models that are both better and cheaper."
---

# SpaceXAI: Grok 4.6 — price, capability and what beats it · Undominated.ai

> SpaceXAI: Grok 4.6: $2.00/M in, $6.00/M out. Independent capability scores, context-tier pricing, and the models that are both better and cheaper.

[Leaderboard](/) / xAI

# Grok 4.6

xAI · released 2026-08-12 · proprietary

 $3.00 per million tokens, balanced Balanced Summarise Chat Code gen Agentic

## Nothing is both better and cheaper.

Under a balanced workload, no other model in the catalogue scores higher *and* costs less. This model is on the value frontier.

## Our take

 editorial — not a measurement

Genuinely competitive at the frontier and the cheapest way to reach AA index 61 — it matches GPT-5.6 Sol's intelligence score at $2/$6 versus Sol's $4/$20, with a blended cost Artificial Analysis puts at $0.84 per million against Sol's $1.23. Output at $6 is the standout number; most frontier models charge 3-5x that. xAI publishes its long-context threshold clearly at 200k, above which it becomes $4/$12. The 500k context is smaller than the 1M-token peers. OpenRouter now labels the vendor 'SpaceXAI'.

 - **Unverified in this take:** This note cites a time-to-first-token figure that the data layer withheld as implausible (it appears to be total reasoning time mislabelled at source). Treat it as unverified.

### Strengths

 - AA intelligence index 61 at a fraction of Sol's price
- $6 output per MTok — exceptionally cheap at this capability
- Published 200k tier threshold
- 67 output tokens/sec, ~44s TTFT — faster than Sol and Opus 5

### Weaknesses

 - 500k context, half the 1M-token peers
- Doubles to $4/$12 past 200k tokens
- No batch discount published
- Consumer-side documentation is poor; API docs are the only reliable source

### Reach for it when

 - Cost-sensitive frontier reasoning
- Output-heavy generation where $6/MTok matters
- Workloads that fit under 200k tokens

### Avoid it if

 - You need a 1M-token window
- You need a published batch discount

Sources: docs.x.ai · artificialanalysis.ai

### Every price dimension

| Input | $2.00 /M |
| --- | --- |
| Output | $6.00 /M |
| Cached input | $0.500 /M |
| Web search | $0.005 /call |

**Past 200,000 tokens the price changes.** Input goes to $4.00/M (2×) and output to $12.00/M. The headline rate does not apply to a long-context workload.

### Independent scores

| Intelligence | 60.9 |
| --- | --- |
| Coding | 76.8 |
| Agentic | 58.7 |
| LMArena Elo | 1443.7 high |

Sources are listed separately rather than averaged. Across the 62 models both have scored they correlate at r = 0.806 — close agreement overall, but four models rank very differently between them, and a blended score would hide exactly those.

#### Best rankings by task

 - androidnative #1 of 54 1311
- mobileapps #2 of 56 1281
- asciiart #4 of 83 1312
- webapps #5 of 56 1282
- gamedev #6 of 144 1340
- uicomponent #6 of 140 1341
- svg #6 of 98 1280
- fullstack #6 of 59 1293

### Capability

| Context window | 500K |
| --- | --- |
| Input modes | text, image, file |
| Tool use | yes |
| Reasoning | always on |
| Open weights | no |

### Provenance

| Price source | openrouter.ai |
| --- | --- |
| Fetched | 2026-08-24 |
| Quality data | verified |
| Cross-checked | vendor page |

A published time-to-first-token figure for this model was implausible (44s) and has been withheld rather than displayed.

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