Grok 4.5: benchmarks, price and rank
Grok 4.5 from xAI is 38th of 123 rated AI models on Spezia's leaderboard. It costs $2 in, $6 out per million tokens.
- 38th of 123 rated models
- Rating 1,421
- Rated on 11 benchmarks
- Closed
- Released Jul 8, 2026
- 500,000 tokens of context
- Knows the world to February 2026
Where it is strongest
Not in the top tenth on any benchmark in use.
Where it falls behind
- 46th of 66 on FrontierMath Tier 4
- 41st of 60 on Vending-Bench 2
- 47th of 76 on FrontierMath
Price: $2 in, $6 out per million tokens.
Its headline results
The benchmarks that count most in the rating, with its place among the models measured the same way, and where each number came from.
- APEX-Agents56.2%
Long tasks written by investment banking analysts, management consultants and corporate lawyers from their own work, done across files and apps in a realistic work setup.
23rd of 56. Independent result from Epoch AI.
- Terminal-Bench 4.012.4%
Hard jobs done in a real computer terminal: building and fixing software, setting up systems, and science and engineering problems.
Independent result from LLM Stats.
- SWE-Bench Pro64.7%
Long changes to real codebases in several languages, often across many files, including code from private and copyleft projects that models are unlikely to have seen.
8th of 50. The maker's own number, from xAI, via LLM Stats.
- Vending-Bench 2$3,887
The model runs a simulated vending machine business for a year on its own: finding suppliers, ordering stock, setting prices and paying the daily fees.
41st of 60. Independent result from Epoch AI.
- DeepSWE 1.154%
Software engineering tasks run in the same simple agent setup for every model.
Independent result from LLM Stats.
- SimpleBench70%
Multiple-choice puzzles about everyday situations, space, time and people, written to trip up models that pattern-match instead of think. Ordinary adults do well on them.
25th of 68. Independent result from Epoch AI.
- SimpleQA Verified48.3%
Short factual questions with one checked answer, asked without web search.
34th of 78. Independent result from Epoch AI.
- FrontierMath57.2%
Hundreds of new, unpublished math problems written by mathematicians, from hard undergraduate level up to research, with answers a computer can check.
47th of 76. Independent result from Epoch AI.
- LMArena text1,448
People put a question to two anonymous models and vote for the better answer.
42nd of 107. Independent result from LMArena.
- LMArena WebDev1,552
People ask two anonymous models to build the same web page or app and vote for the better one.
39th of 98. Independent result from LMArena.
4 more results in its full profile.
Every result with its source, what it costs per task, what jumped with its release, side by side with any other model, and answers to your questions about when to use it.
Models ranked near it
How the rating works, and every benchmark it uses: the model leaderboard.