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#20

Grok 4.3

X AI Release: 2026-05-01 Tested on: 2026-05-01 00:40 x-ai/grok-4.3::medium

Summary

Grok 4.3 scores 8.2 on AI BENCHY and ranks #20. It has 10.0 reliability, a 81.5% pass rate, $0.517 total cost, and 48.63s average response time.

What makes Grok 4.3 unique: It uses unusually many reasoning tokens, which can help explain its slower or more expensive runs.

Score

8.2

Consistency

8.6

Reliability

10.0

Total Cost (Current Price)

$0.517

Total Output Tokens

188,270

Total Input Tokens

0

Input Price

$1.250 / 1M

Output Price

$2.500 / 1M

Tests Correct

Wrong Tests: 5

Attempt pass rate: 81.5%

Flaky tests

3

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

48.63s

Response Time (max): 216.69s

Response Time (total): 875.27s

Did not follow instructions: 3 Wrong answer: 2

Generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#20 xAI: Grok 4.3

medium
Cost
$0.009
Time
19.0s
Tokens
3,661 tok

Run history

Tested on Score Reliability Tests Correct Total Cost 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 Current run

Run comparison

RunScoreConsistencyReliabilityTests CorrectFlaky testsTotal Output TokensTotal Input TokensTotal CostResponse Time (avg)
2026-05-01 00:40 · Initial run8.28.610.013/183188,2700$0.51748.63s
2026-06-04 14:11 · New test added7.68.510.013/214223,36344,472$0.61447.51s
Difference+0.7+0.10.00-1-35093-44472-$0.098+1117ms

These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

Grok 4.3mediumvsGemini 3.1 Flash Lite PreviewmediumGrok 4.3mediumvsGemini 3.1 Flash LitemediumGrok 4.3mediumvsClaude Sonnet 4.6mediumGrok 4.3mediumvsKimi K2.6mediumFree AvailableGrok 4.3mediumvsQwen3.6 PlusmediumGrok 4.3mediumvsQwen3.5-122B-A10BmediumGrok 4.3mediumvsGemini 3.5 FlashhighGrok 4.3mediumvsGemini 3 Flash PreviewmediumGrok 4.3mediumvsNemotron 3 Ultra 550b A55bmediumFree AvailableGrok 4.3mediumvsGPT-5.5low

Category Breakdown

Category Score Consistency Tests Correct
Anti-AI Tricks 10.0 10.0
Coding 10.0 10.0
Combined 10.0 10.0
Data parsing and extraction 10.0 10.0
Domain specific 5.3 7.2
General Intelligence 5.4 2.5
Instructions following 9.8 10.0
Puzzle Solving 5.9 7.2
Tool Calling 10.0 10.0

Compared models