Gemini 3.5 Flash vs Grok 4.20 Beta benchmark comparison: Gemini 3.5 Flash leads on average score with 9.4 vs 5.8. Grok 4.20 Beta has the lower benchmark cost at $0.087 vs $0.349. Grok 4.20 Beta is faster at 1.19s vs 3.27s, with pass rates of 90.5% vs 37.0%.
Recommended model: Gemini 3.5 Flash - It has the strongest score in this comparison (9.4) and the best overall balance of cost and response time across all 2 models.
Grok 4.20 BetaGrok 4.20 BetanoneArchived model: this model is no longer updated or tested on new tests.Release: 2026-03-12
Score
9.4Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
5.8Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
Rank
#3
#107
Reliability
10.0First-attempt success score: 10.0 means no retryable target API or rate-limit failures before successful calls; tracked failures lower the score.…
N/AFirst-attempt success score: 10.0 means no retryable target API or rate-limit failures before successful calls; tracked failures lower the score.…
Consistency
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
9.6Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
Tests Correct
A test is fully passed only if every run passed for that test.Wrong answer: 2Response Time (avg)3.27sResponse Time (max)9.05sResponse Time (total)68.65sA test is fully passed only if every run passed for that test.…
A test is fully passed only if every run passed for that test.Wrong answer: 10Did not follow instructions: 1Invalid tool call: 1Response Time (avg)1.19sResponse Time (max)6.48sResponse Time (total)21.43sA test is fully passed only if every run passed for that test.…
Attempt pass rate
90.5%Attempt pass rate = passed attempts / total attempts across runs.…
37.0%Attempt pass rate = passed attempts / total attempts across runs.…
Flaky tests
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
Total Runs
63Total Runs…
52Total Runs…
Cost per result
1.834Shows the average cost per correct benchmark answer in cents (lower is better).…
1.510Shows the average cost per correct benchmark answer in cents (lower is better).…
Total Cost
$0.349Total Cost (Current Price)…
$0.087Total Cost (Current Price)…
Input Price
$1.500 / 1MInput Price…
$2.041 / 1MInput Price…
Output Price
$9.000 / 1MOutput Price…
$2.041 / 1MOutput Price…
Total Input Tokens
36,938Total Input Tokens…
40,597Total Input Tokens…
Output Tokens
2,033Output Tokens…
1,657Output Tokens…
Reasoning Tokens
30,519Reasoning Tokens…
0Reasoning Tokens…
Response Time (avg)
3.27sResponse Time (avg)…
1.19sResponse Time (avg)…
Response Time (max)
9.05sResponse Time (max)…
6.48sResponse Time (max)…
Response Time (total)
68.65sResponse Time (total)…
21.43sResponse Time (total)…
Generation showcase
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)2.52sResponse Time (max)5.40sResponse Time (total)10.08sA test is fully passed only if every run passed for that test.…
2.52sResponse Time (avg)…
494Total Input Tokens…
209Output Tokens…
2,536Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
4.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
8.4Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
16.7%Attempt pass rate = passed attempts / total attempts across runs.…
1Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 4Response Time (avg)597msResponse Time (max)866msResponse Time (total)2.39sA test is fully passed only if every run passed for that test.…
7.8Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
66.7%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 1Response Time (avg)6.71sResponse Time (max)9.05sResponse Time (total)20.13sA test is fully passed only if every run passed for that test.…
6.71sResponse Time (avg)…
8,118Total Input Tokens…
458Output Tokens…
13,420Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
5.5Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
0.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 1Response Time (avg)1.14sResponse Time (max)1.14sResponse Time (total)1.14sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)6.44sResponse Time (max)6.44sResponse Time (total)6.44sA test is fully passed only if every run passed for that test.…
6.44sResponse Time (avg)…
12,873Total Input Tokens…
351Output Tokens…
3,050Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
3.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
0.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Invalid tool call: 1Response Time (avg)6.48sResponse Time (max)6.48sResponse Time (total)6.48sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)1.81sResponse Time (max)2.32sResponse Time (total)3.63sA test is fully passed only if every run passed for that test.…
1.81sResponse Time (avg)…
7,548Total Input Tokens…
279Output Tokens…
1,164Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)601msResponse Time (max)634msResponse Time (total)1.20sA test is fully passed only if every run passed for that test.…
7.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
66.7%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 1Response Time (avg)3.39sResponse Time (max)4.44sResponse Time (total)10.16sA test is fully passed only if every run passed for that test.…
3.39sResponse Time (avg)…
633Total Input Tokens…
12Output Tokens…
4,538Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
3.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
0.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 3Response Time (avg)611msResponse Time (max)616msResponse Time (total)1.83sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)2.27sResponse Time (max)2.27sResponse Time (total)2.27sA test is fully passed only if every run passed for that test.…
2.27sResponse Time (avg)…
486Total Input Tokens…
119Output Tokens…
916Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
5.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
0.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Did not follow instructions: 1Response Time (avg)541msResponse Time (max)541msResponse Time (total)541msA test is fully passed only if every run passed for that test.…
9.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)1.86sResponse Time (max)2.10sResponse Time (total)3.73sA test is fully passed only if every run passed for that test.…
1.86sResponse Time (avg)…
615Total Input Tokens…
71Output Tokens…
1,652Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
6.3Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
50.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 1Response Time (avg)649msResponse Time (max)952msResponse Time (total)1.30sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)2.35sResponse Time (max)3.25sResponse Time (total)7.06sA test is fully passed only if every run passed for that test.…
2.35sResponse Time (avg)…
558Total Input Tokens…
288Output Tokens…
2,150Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
7.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
66.7%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.Wrong answer: 1Response Time (avg)586msResponse Time (max)813msResponse Time (total)1.76sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)3.27sResponse Time (max)3.27sResponse Time (total)3.27sA test is fully passed only if every run passed for that test.…
3.27sResponse Time (avg)…
5,457Total Input Tokens…
234Output Tokens…
403Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)4.79sResponse Time (max)4.79sResponse Time (total)4.79sA test is fully passed only if every run passed for that test.…
10.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
10.0Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
100.0%Attempt pass rate = passed attempts / total attempts across runs.…
0Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
A test is fully passed only if every run passed for that test.No failed answers.Response Time (avg)1.88sResponse Time (max)1.88sResponse Time (total)1.88sA test is fully passed only if every run passed for that test.…
1.88sResponse Time (avg)…
156Total Input Tokens…
12Output Tokens…
690Reasoning Tokens…
Grok 4.20 BetaArchived model: this model is no longer updated or tested on new tests.