Qwen3.5 Plus 2026-04-20 (medium) vs Qwen3.8 Flash Next (medium)
Qwen3.5 Plus 2026-04-20 (medium) leads on average score with 7.7 vs 7.6. Qwen3.8 Flash Next (medium) has the lower benchmark cost at ~$0.047 vs $0.435. Qwen3.8 Flash Next (medium) is faster at 24.79s vs 54.06s, with pass rates of 65.2% vs 75.4%.
Last updated at:
2026-10-05
Compared models
Rank
#116
Total Output Tokens
200,348
Response Time (avg)
54.06s
Total Cost
$0.435
Candidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
Rank
#119
Total Output Tokens
143,965
Response Time (avg)
24.79s
Total Cost
~$0.047Estimated GPU electricity cost only. It excludes the rest of the computer and hardware ownership. NVIDIA GeForce RTX 3090: 0.4752 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.046984.
Recommended modelQwen3.8 Flash Next (medium)
Its score stays close to the best score here (7.6 vs 7.7), while costing about 9.2x less than Qwen3.5 Plus 2026-04-20 (medium).
Qwen3.8 Flash NextQwen3.8 Flash NextmediumCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.Release: 2026-10-04
Qwen3.8 Flash NextQwen3.8 Flash NextmediumCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.Release: 2026-10-04
Score
7.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.6Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
Rank
#116
#119
Reliability
9.7First-attempt success score: 10.0 means no retryable target API or rate-limit failures before successful calls; tracked failures lower the score.…
10.0First-attempt success score: 10.0 means no retryable target API or rate-limit failures before successful calls; tracked failures lower the score.…
Consistency
9.1Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
7.9Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
Attempts
69/69
69/69
Tests Correct
A test is fully passed only if every run passed for that test.Wrong answer: 8Timed out: 1Response Time (avg)54.06sResponse Time (max)203.01sResponse Time (total)1189.36sA 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: 6Did not follow instructions: 1No answer: 1Response Time (avg)24.79sResponse Time (max)159.62sResponse Time (total)570.26sA test is fully passed only if every run passed for that test.…
Attempt pass rate
65.2%Attempt pass rate = passed attempts / total attempts across runs.…
75.4%Attempt pass rate = passed attempts / total attempts across runs.…
Flaky tests
2Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
6Flaky tests had mixed outcomes across runs (at least one pass and one fail).…
Total Runs
69Total Runs…
69Total Runs…
Cost per result
3.481
~0.314Estimated GPU electricity cost only. It excludes the rest of the computer and hardware ownership. NVIDIA GeForce RTX 3090: 0.4752 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.046984.
Total Cost
$0.435
~$0.047Estimated GPU electricity cost only. It excludes the rest of the computer and hardware ownership. NVIDIA GeForce RTX 3090: 0.4752 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.046984.
Input Price
$0.300 / 1MInput Price…
N/AInput Price…
Output Price
$1.800 / 1MOutput Price…
N/AOutput Price…
Cache Read Price
N/ACache Read Price…
N/ACache Read Price…
Cache Write Price
$0.375 / 1MCache Write Price…
N/ACache Write Price…
Total Input Tokens
176,539Total Input Tokens…
278,792Total Input Tokens…
Output Tokens
4,419Output Tokens…
1,695Output Tokens…
Reasoning Tokens
195,929Reasoning Tokens…
142,270Reasoning Tokens…
Response Time (avg)
54.06sResponse Time (avg)…
24.79sResponse Time (avg)…
Response Time (max)
203.01sResponse Time (max)…
159.62sResponse Time (max)…
Response Time (total)
1189.36sResponse Time (total)…
570.26sResponse Time (total)…
Parameters
~397B total (~17B active)
180B total (6B active)
Availability
Closed
Weights available
Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.
Model generation showcase
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
#116 Qwen3.5 Plus 2026-04-20
medium
Cost
$0.008
Time
76.7s
Tokens
4,355 tok
#119 Qwen3.8 Flash Next
mediumCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
Cost
~$0.002Estimated GPU electricity cost only. It excludes the rest of the computer and hardware ownership. NVIDIA GeForce RTX 3090: 0.0113 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.001119.
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)203.01sResponse Time (max)203.01sResponse Time (total)203.01sA test is fully passed only if every run passed for that test.…
203.01sResponse Time (avg)…
134,433Total Input Tokens…
2,139Output Tokens…
26,086Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
4.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
3.1Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
33.3%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: 1Response Time (avg)159.62sResponse Time (max)159.62sResponse Time (total)159.62sA 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)10.84sResponse Time (max)15.11sResponse Time (total)43.36sA test is fully passed only if every run passed for that test.…
10.84sResponse Time (avg)…
672Total Input Tokens…
215Output Tokens…
7,748Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
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)2.74sResponse Time (total)7.24sA test is fully passed only if every run passed for that test.…
6.2Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
8.7Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
33.3%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: 2Response Time (avg)125.25sResponse Time (max)189.38sResponse Time (total)375.76sA test is fully passed only if every run passed for that test.…
125.25sResponse Time (avg)…
7,630Total Input Tokens…
308Output Tokens…
58,682Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
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)45.53sResponse Time (max)98.91sResponse Time (total)136.59sA test is fully passed only if every run passed for that test.…
6.5Summarizes 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).…
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.Timed out: 1Response Time (avg)92.41sResponse Time (max)92.41sResponse Time (total)92.41sA test is fully passed only if every run passed for that test.…
92.41sResponse Time (avg)…
14,934Total Input Tokens…
483Output Tokens…
17,490Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
6.4Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
5.8Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
66.7%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.No answer: 1Response Time (avg)76.72sResponse Time (max)116.08sResponse Time (total)153.43sA 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)38.32sResponse Time (max)41.70sResponse Time (total)76.63sA test is fully passed only if every run passed for that test.…
38.32sResponse Time (avg)…
7,782Total Input Tokens…
270Output Tokens…
14,668Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
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)6.65sResponse Time (max)7.50sResponse Time (total)13.31sA test is fully passed only if every run passed for that test.…
2.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.2Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
11.1%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: 3Response Time (avg)57.36sResponse Time (max)90.70sResponse Time (total)172.08sA test is fully passed only if every run passed for that test.…
57.36sResponse Time (avg)…
780Total Input Tokens…
63Output Tokens…
31,644Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
2.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
4.4Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
22.2%Attempt pass rate = passed attempts / total attempts across runs.…
2Flaky 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)17.29sResponse Time (max)18.55sResponse Time (total)51.86sA test is fully passed only if every run passed for that test.…
4.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
9.6Consistency 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)25.30sResponse Time (max)25.30sResponse Time (total)25.30sA test is fully passed only if every run passed for that test.…
25.30sResponse Time (avg)…
516Total Input Tokens…
125Output Tokens…
4,792Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
4.8Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
3.2Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
33.3%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.Did not follow instructions: 1Response Time (avg)7.29sResponse Time (max)7.29sResponse Time (total)7.29sA 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)20.25sResponse Time (max)21.65sResponse Time (total)40.50sA test is fully passed only if every run passed for that test.…
20.25sResponse Time (avg)…
699Total Input Tokens…
103Output Tokens…
7,689Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
9.8Summarizes 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).…
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)2.04sResponse Time (max)2.85sResponse Time (total)4.09sA test is fully passed only if every run passed for that test.…
8.2Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.2Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
88.9%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: 1Response Time (avg)17.67sResponse Time (max)24.83sResponse Time (total)53.02sA test is fully passed only if every run passed for that test.…
17.67sResponse Time (avg)…
696Total Input Tokens…
338Output Tokens…
9,800Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
8.2Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.2Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
88.9%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: 1Response Time (avg)2.23sResponse Time (max)2.98sResponse Time (total)6.69sA 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)14.72sResponse Time (max)14.72sResponse Time (total)14.72sA test is fully passed only if every run passed for that test.…
14.72sResponse Time (avg)…
8,193Total Input Tokens…
348Output Tokens…
2,164Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
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)5.75sResponse Time (max)5.75sResponse Time (total)5.75sA test is fully passed only if every run passed for that test.…
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: 1Response Time (avg)92.57sResponse Time (max)92.57sResponse Time (total)92.57sA test is fully passed only if every run passed for that test.…
92.57sResponse Time (avg)…
204Total Input Tokens…
27Output Tokens…
15,166Reasoning Tokens…
Qwen3.8 Flash NextCandidate responses were generated on local hardware. OpenRouter was used only for judging. qwen3.8-flash-next-iq3_s · IQ3_S · Strata 0.1.39 · NVIDIA GeForce RTX 3090.
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: 1Response Time (avg)24.39sResponse Time (max)24.39sResponse Time (total)24.39sA test is fully passed only if every run passed for that test.…