Grok 4.5
by xAI
Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Models
Grok 4.5
Added 10 July 2026
Overview
Grok 4.5 is SpaceXAI's smartest model with frontier performance on coding, knowledge work, and STEM.
Best for
Best for
Provider diversification and frontier A/B tests
Use cases
- chat products
- research agents
- coding experiments
How to use / API access
Call via OpenRouter with model id `x-ai/grok-4.5`.
- openrouter ·
x-ai/grok-4.5Docs
OpenRouter id: x-ai/grok-4.5
Benchmarks
- Intelligence Index (artificial-analysis): 38.8 index
- Coding Index (artificial-analysis): 72.4 index
- Agentic Index (artificial-analysis): 41.2 index
- Design Arena agenticgamedev (other): 1235 elo · #6
- Design Arena androidnative (other): 1249 elo · #7
- Design Arena fullstack (other): 1249 elo · #10
- Design Arena godotgamedev (other): 1229 elo · #11
Enterprise DNA angle
Omni makes provider diversification operational: same jobs, different model ids, shared evals.
Notes
Grok 4.5 is listed in the EDNA Models directory from the OpenRouter catalogue.
Pros
- Competitive frontier quality from xAI
- Useful alternative when diversifying providers
Cons
- Newer ecosystem — validate latency and tool calling for your stack
- Closed model
In the AI Pulse
Recent daily briefs from the Enterprise DNA AI Pulse that mention this. The short daily read on what is actually happening in AI.
- Business Models & Winners12 Aug 2026
Grok 4.6 undercuts the frontier on price at unchanged pricing.
- Frontier Labs Watch28 July 2026
Cursor launched an India-only pricing tier (₹649/month, ~$7-8) bundling Grok 4.5
- Frontier Labs Watch22 July 2026
xAI claims Grok 4.5 plus its "Grok Build" agent beat GPT-5.5 and Claude Opus 4.8 on an independent real-work benchmark (GDPval+), with the widest margins in legal and healthcare tasks.
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