#19 xAI: Grok 4.5
low- Cost
- $0.011
- Time
- 12.4s
- Tokens
- 2,018 tok
X AI
Release: 2026-07-08
Tested on: 2026-07-16 23:08
x-ai/grok-4.5::low
~1.7T total (~170B active)MoEClosedEstimated
Summary
Grok 4.5 scores 8.4 on AI BENCHY and ranks #19. It has 10.0 reliability, a 75.8% pass rate, $0.935 total cost, and 15.56s average response time.
Model facts
Researched on 2026-08-12
- Parameters
- ~1.7T total (~170B active)
- Architecture
- MoE
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. Low-confidence external estimate; xAI does not disclose the count.
8.4
Consistency
9.7
10.0
$0.935
Total Output Tokens
113,951
Total Input Tokens
125,596
Input Price
$2.000 / 1M
Output Price
$6.000 / 1M
Flaky tests
1
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-08-14 02:54 Re-test | 8.4 | 10.0 | $0.945 | Compare | |
| 2026-07-16 23:08 New test added | 8.4 | 10.0 | $0.935 | Current run | |
| 2026-07-08 22:51 Initial run | 7.8 | 10.0 | $0.760 | Compare |
This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.
Run comparison
| Run | Benchmark coverage | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-16 23:08 · New test added | 66/66 attempts | 8.4 | 9.7 | 10.0 | 16/22 | 1 | 113,951 | 125,596 | $0.935 | 15.56s |
| 2026-08-14 02:54 · Re-test | 66/66 attempts | 8.4 | 9.3 | 10.0 | 16/22 | 2 | 115,489 | 125,605 | $0.945 | 16.17s |
| Difference | — | 0.0 | +0.4 | 0.0 | 0 | -1 | -1538 | -9 | -$0.010 | -607ms |
These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.
Price History
Historical pricing data for this model from OpenRouter.
| Date | Input Price | Output Price |
|---|---|---|
| 2026-07-08 22:12 | $2.000 / 1M | $6.000 / 1M |
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 10.0 | 10.0 | |
| Coding | 10.0 | 10.0 | |
| Combined | 6.5 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 3.0 | 10.0 | |
| General Intelligence | 6.1 | 3.1 | |
| Instructions following | 9.8 | 10.0 | |
| Puzzle Solving | 10.0 | 10.0 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |