#139 SpaceXAI: Grok 4.3
medium- Cost
- $0.009
- Time
- 19.0s
- Tokens
- 3,661 tok
X AI
Release: 2026-05-01
Tested on: 2026-08-14 02:54
x-ai/grok-4.3::medium
~1.5T total (~150B active)MoEClosedEstimated Summary
Grok 4.3 scores 7.0 on AI BENCHY and ranks #139. It has 10.0 reliability, a 66.7% pass rate, $0.741 total cost, and 44.21s average response time.
Model facts
Researched on 2026-08-12
- Parameters
- ~1.5T total (~150B active)
- Architecture
- MoE
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. xAI does not disclose the architecture or count.
7.0
Consistency
8.2
10.0
$0.741
Total Output Tokens
225,904
Total Input Tokens
140,244
Input Price
$1.250 / 1M
Output Price
$2.500 / 1M
Flaky tests
5
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 | 7.0 | 10.0 | $0.741 | Current run | |
| 2026-07-16 23:07 New test added | 7.1 | 10.0 | $0.779 | Compare | |
| 2026-06-04 14:11 New test added | 7.6 | 10.0 | $0.614 | Compare | |
| 2026-05-22 00:32 Re-test | 7.8 | 10.0 | $0.593 | Compare | |
| 2026-05-01 00:40 Initial run | 8.2 | 10.0 | $0.517 | 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) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-14 02:54 · Current run | 66/66 attempts | 7.0 | 8.2 | 10.0 | 12/22 | 5 | 225,904 | 140,244 | $0.741 | 44.21s |
| 2026-06-04 14:11 · New test added | 63/63 attempts | 7.6 | 8.5 | 10.0 | 13/21 | 4 | 223,363 | 44,472 | $0.614 | 47.51s |
| Difference | — | -0.5 | -0.3 | 0.0 | -1 | +1 | +2541 | +95772 | +$0.127 | -3298ms |
Benchmark coverage differs: 66/66 attempts (Target: 3 repeats per test) versus 63/63 attempts (Target: 3 repeats per test). Totals and repeat-sensitive metrics are not directly comparable.
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 |
|---|---|---|
| 2026-08-14 12:51 | $1.250 / 1M | $2.500 / 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
Grok 4.3mediumvsMercury 2.5highGrok 4.3mediumvsGPT-5.6 SolnoneGrok 4.3mediumvsSolar Pro 4highGrok 4.3mediumvsDeepSeek V3.2mediumGrok 4.3mediumvsStep 3.7 FlashlowGrok 4.3mediumvsGLM 5.1mediumGrok 4.3mediumvsMuse Glimmer 30BlowGrok 4.3mediumvsGPT-5.5noneGrok 4.3mediumvsQwen3.5-122B-A10BmediumGrok 4.3mediumvsMercury 2medium
Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 10.0 | 10.0 | |
| Coding | 5.9 | 7.7 | |
| Combined | 6.5 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 3.5 | 4.4 | |
| General Intelligence | 5.4 | 2.5 | |
| Instructions following | 9.8 | 10.0 | |
| Puzzle Solving | 5.9 | 7.2 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |