SpaceXAI: Grok 4.5
Grok 4.5 by x-ai is an advanced AI model with a context length of 500,000 tokens and supports input modalities including text, images, and files; it also features robust reasoning capabilities and the ability to handle tools. This comprehensive suite makes Grok 4.5 versatile for various tasks that require understanding from multiple data sources. While Grok 4.5 offers strong performance with a blended benchmark score of 91.5 across three benchmarks, its cost of $2.0 per million input tokens and $6.0 per million output tokens might be a factor for those looking to balance budget and performance carefully. Its pricing could make it more suitable for organizations or projects that need advanced reasoning and tool integration within a specific budget constraint.
Benchmark results
Independent, published benchmarks. Blended score 91.5 across 3 benchmarks, last refreshed 2026-08-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 92.0 |
| AI Index Coding | software engineering tasks | 100.0 |
| AI Index Agentic | multi-step tool-using tasks | 80.6 |
- Model ID
- x-ai/grok-4.5
- Vendor
- x-ai
- Released
- July 2026
- Tokenizer
- Grok
- Input Modalities
- text, image, file
- Output Modalities
- text
- Max Output
- default
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $2.00/M input and $6.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.07 |
| Classify 1,000 customer emails | 500k in / 50k out | $1.30 |
| A month of a busy support chatbot | 5M in / 2M out | $22.00 |
Category rankings
Where SpaceXAI: Grok 4.5 places across the 29 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #16 | Function / Tool CallingAgents · of 25 ranked | 155 |
| #17 | Diagram ExtractionVision · of 25 ranked | 150 |
| #18 | Frontend Component DesignCode · of 25 ranked | 147 |
| #18 | Screenshot DebuggingVision · of 25 ranked | 143 |
| #18 | Chart & Graph ReadingVision · of 25 ranked | 153 |
| #19 | OCR / Document ParsingData · of 25 ranked | 147 |
| #19 | Table Extraction from PDFsData · of 25 ranked | 147 |
| #20 | Sales / Cold EmailBusiness · of 25 ranked | 123 |
| #20 | Resume WritingBusiness · of 25 ranked | 118 |
| #20 | Job Application DraftingBusiness · of 25 ranked | 123 |
| #20 | Browser AutomationAgents · of 25 ranked | 173 |
| #20 | Journaling HelperPersonal · of 25 ranked | 123 |
| #20 | Recipe GenerationPersonal · of 25 ranked | 123 |
| #22 | SQL GenerationCode · of 25 ranked | 172 |
| #22 | Regex WritingCode · of 25 ranked | 136 |
| #22 | Language TranslationWriting · of 25 ranked | 136 |
| #22 | Tutoring for KidsPersonal · of 25 ranked | 136 |
| #23 | SOP / Process DocsBusiness · of 25 ranked | 137 |
| #24 | Data AnalysisData · of 25 ranked | 172 |
| #24 | Marketing CopyWriting · of 25 ranked | 131 |
| #24 | Financial AnalysisProfessional · of 25 ranked | 160 |
| #24 | Math TutoringEducation · of 25 ranked | 148 |
| #24 | Standardized Test PrepEducation · of 25 ranked | 131 |
| #24 | Fitness CoachingPersonal · of 25 ranked | 135 |
| #24 | Experiment DesignResearch · of 25 ranked | 158 |
| #25 | Code DocumentationCode · of 25 ranked | 143 |
| #25 | CSV / Spreadsheet CleanupData · of 25 ranked | 154 |
| #25 | Blog Post WritingWriting · of 25 ranked | 141 |
| #25 | Trip PlanningPersonal · of 25 ranked | 141 |
Similar models
SpaceXAI: Grok 4.6
SpaceXAI: Grok Build 0.1
SpaceXAI: Grok 4.3
SpaceXAI: Grok 4.20
SpaceXAI: Grok 4.20 Multi-Agent
Quick answers
- How much does SpaceXAI: Grok 4.5 cost?
- $2.00 per million input tokens and $6.00 per million output tokens.
- What is SpaceXAI: Grok 4.5's context window?
- 500,000 tokens, roughly 750 pages of text in a single request.
- Does SpaceXAI: Grok 4.5 support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can SpaceXAI: Grok 4.5 process images?
- Yes, it accepts image input.