Claude Fable 5.1 (high) vs Qwen3.8 Flash Next (low)
The average score is effectively tied at 7.9 vs 8.0. Qwen3.8 Flash Next (low) has the lower benchmark cost at ~$0.045 vs $3.471. Claude Fable 5.1 (high) is faster at 13.30s vs 23.66s, with pass rates of 85.5% vs 79.7%.
Last updated at:
2026-10-05
Compared models
Rank
#100
Total Output Tokens
40,466
Response Time (avg)
13.30s
Total Cost
$3.471
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
#96
Total Output Tokens
135,295
Response Time (avg)
23.66s
Total Cost
~$0.045Estimated GPU electricity cost only. It excludes the rest of the computer and hardware ownership. NVIDIA GeForce RTX 3090: 0.4535 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.044834.
Recommended modelQwen3.8 Flash Next (low)
It has the best score here (8.0), while costing about 77.4x less than Claude Fable 5.1 (high).
Qwen3.8 Flash NextQwen3.8 Flash NextlowCandidate 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 NextlowCandidate 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
7.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
8.0Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
Rank
#100
#96
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.…
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
9.7Consistency score reflects run-to-run stability (10 = very consistent, even if consistently wrong).…
8.0Consistency 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: 3API error: 1Response Time (avg)13.30sResponse Time (max)40.17sResponse Time (total)305.83sA 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: 1Invalid tool call: 1Response Time (avg)23.66sResponse Time (max)166.72sResponse Time (total)544.16sA test is fully passed only if every run passed for that test.…
Attempt pass rate
85.5%Attempt pass rate = passed attempts / total attempts across runs.…
79.7%Attempt pass rate = passed attempts / total attempts across runs.…
Flaky tests
1Flaky 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
18.264
~0.299Estimated GPU electricity cost only. It excludes the rest of the computer and hardware ownership. NVIDIA GeForce RTX 3090: 0.4535 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.044834.
Total Cost
$3.471
~$0.045Estimated GPU electricity cost only. It excludes the rest of the computer and hardware ownership. NVIDIA GeForce RTX 3090: 0.4535 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.044834.
Input Price
$10.000 / 1MInput Price…
N/AInput Price…
Output Price
$50.000 / 1MOutput Price…
N/AOutput Price…
Cache Read Price
$0.250 / 1MCache Read Price…
N/ACache Read Price…
Cache Write Price
$12.500 / 1MCache Write Price…
N/ACache Write Price…
Total Input Tokens
144,676Total Input Tokens…
342,163Total Input Tokens…
Output Tokens
8,184Output Tokens…
1,518Output Tokens…
Reasoning Tokens
32,282Reasoning Tokens…
133,777Reasoning Tokens…
Response Time (avg)
13.30sResponse Time (avg)…
23.66sResponse Time (avg)…
Response Time (max)
40.17sResponse Time (max)…
166.72sResponse Time (max)…
Response Time (total)
305.83sResponse Time (total)…
544.16sResponse Time (total)…
Parameters
~9.5T total (~878B 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.
#100 Claude Fable 5.1
high
Cost
$0.384
Time
102.5s
Tokens
7,824 tok
#96 Qwen3.8 Flash Next
lowCandidate 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: 0.0131 h × 0.300 kW × €0.2896/kWh × 1.138 USD/EUR = ~$0.001295.
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.API error: 1Response Time (avg)6.93sResponse Time (max)6.93sResponse Time (total)6.93sA test is fully passed only if every run passed for that test.…
6.93sResponse Time (avg)…
8,718Total Input Tokens…
254Output Tokens…
141Reasoning 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.
6.1Summarizes 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).…
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.Wrong answer: 1Response Time (avg)137.50sResponse Time (max)137.50sResponse Time (total)137.50sA 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)5.90sResponse Time (max)6.70sResponse Time (total)23.59sA test is fully passed only if every run passed for that test.…
5.90sResponse Time (avg)…
858Total Input Tokens…
287Output Tokens…
790Reasoning 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)2.03sResponse Time (max)2.72sResponse Time (total)8.13sA test is fully passed only if every run passed for that test.…
8.4Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.4Consistency 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)13.91sResponse Time (max)19.46sResponse Time (total)41.74sA test is fully passed only if every run passed for that test.…
13.91sResponse Time (avg)…
10,608Total Input Tokens…
520Output Tokens…
6,503Reasoning 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)29.46sResponse Time (max)49.90sResponse Time (total)88.39sA 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)34.59sResponse Time (max)40.17sResponse Time (total)69.18sA test is fully passed only if every run passed for that test.…
34.59sResponse Time (avg)…
98,419Total Input Tokens…
5,484Output Tokens…
5,373Reasoning 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.
6.9Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
5.9Consistency 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.Invalid tool call: 1Response Time (avg)98.91sResponse Time (max)166.72sResponse Time (total)197.82sA 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)6.30sResponse Time (max)7.96sResponse Time (total)12.59sA test is fully passed only if every run passed for that test.…
6.30sResponse Time (avg)…
10,515Total Input Tokens…
312Output Tokens…
403Reasoning 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)6.20sResponse Time (max)6.23sResponse Time (total)12.40sA 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)24.34sResponse Time (max)29.92sResponse Time (total)73.01sA test is fully passed only if every run passed for that test.…
24.34sResponse Time (avg)…
990Total Input Tokens…
63Output Tokens…
12,436Reasoning 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.
4.1Summarizes 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).…
44.5%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)23.34sResponse Time (max)42.75sResponse Time (total)70.03sA 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)5.40sResponse Time (max)5.40sResponse Time (total)5.40sA test is fully passed only if every run passed for that test.…
5.40sResponse Time (avg)…
714Total Input Tokens…
291Output Tokens…
0Reasoning 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)5.00sResponse Time (max)5.00sResponse Time (total)5.00sA 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)5.60sResponse Time (max)5.76sResponse Time (total)11.20sA test is fully passed only if every run passed for that test.…
5.60sResponse Time (avg)…
921Total Input Tokens…
97Output Tokens…
263Reasoning 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)2.32sResponse Time (max)3.23sResponse Time (total)4.64sA 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)6.11sResponse Time (max)6.93sResponse Time (total)18.32sA test is fully passed only if every run passed for that test.…
6.11sResponse Time (avg)…
912Total Input Tokens…
506Output Tokens…
558Reasoning 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.
8.7Summarizes broad quality across our full private benchmark suite, so ranking reflects consistent performance.…
7.8Consistency 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.Did not follow instructions: 1Response Time (avg)1.72sResponse Time (max)2.26sResponse Time (total)5.15sA 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)13.30sResponse Time (max)13.30sResponse Time (total)13.30sA test is fully passed only if every run passed for that test.…
13.30sResponse Time (avg)…
11,757Total Input Tokens…
354Output Tokens…
118Reasoning 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)5.85sResponse Time (max)5.85sResponse Time (total)5.85sA 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)30.58sResponse Time (max)30.58sResponse Time (total)30.58sA test is fully passed only if every run passed for that test.…
30.58sResponse Time (avg)…
264Total Input Tokens…
16Output Tokens…
5,697Reasoning 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)9.26sResponse Time (max)9.26sResponse Time (total)9.26sA test is fully passed only if every run passed for that test.…