---
title: "SpaceXAI: Grok 4.5 — price, capability and what beats it · Undominated.ai"
canonical: https://undominated.ai/models/x-ai__grok-4.5/
description: "SpaceXAI: Grok 4.5: $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 4.5 — price, capability and what beats it · Undominated.ai

> SpaceXAI: Grok 4.5: $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 4.5

xAI · released 2026-07-08 · proprietary

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

## Gemini 3.7 Flash is both better and cheaper.

It scores **+0.2** higher and costs **75% less** ($0.750/M against $3.00/M) on this workload — and it does everything this model does.

[GLM 5.3](/models/z-ai__glm-5.3) is cheaper still (28% less) but drops no image, file input.

### Every price dimension

| Input | $2.00 /M |
| --- | --- |
| Output | $6.00 /M |
| Cached input | $0.300 /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 | 55.8 |
| --- | --- |
| Coding | 72.4 |
| Agentic | 48.9 |
| LMArena Elo | 1452.3 default |

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

 - godotgamedev #3 of 43 1270
- androidnative #5 of 54 1266
- agenticgamedev #6 of 34 1220
- htmlslides #6 of 34 1216
- asciiart #7 of 83 1294
- mobileapps #7 of 56 1260
- python-pptxslides #8 of 35 1249
- fullstack #9 of 59 1277

### 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 |

Grok 4.5 is a model from SpaceXAI with frontier performance on coding, knowledge work, and STEM.