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Claude Fable 5.2 (xhigh) vs GPT-5.6 Sol (medium)

Claude Fable 5.2 (xhigh) leads on average score with 9.6 vs 9.5. GPT-5.6 Sol (medium) has the lower benchmark cost at $1.700 vs $10.319. GPT-5.6 Sol (medium) is faster at 14.57s vs 33.44s, with pass rates of 94.2% vs 91.3%.

Last updated at: 2026-11-13

Compared models

Rank
#13
Total Output Tokens
188,726
Response Time (avg)
33.44s
Total Cost
$10.319
Rank
#22
Total Output Tokens
38,005
Response Time (avg)
14.57s
Total Cost
$1.700
Recommended model GPT-5.6 Sol (medium)

Its score stays close to the best score here (9.5 vs 9.6), while costing about 6.1x less than Claude Fable 5.2 (xhigh).

Detailed comparison

Metric Claude Fable 5.2 Claude Fable 5.2 xhigh Release: 2026-11-09 GPT-5.6 Sol GPT-5.6 Sol medium Release: 2026-07-09
Score 9.6 9.5
Rank #13 #22
Reliability 9.2 10.0
Consistency 9.6 8.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 94.2% 91.3%
Flaky tests 1 3
Total Runs 69 69
Cost per result 49.137 8.944
Total Cost $10.319 $1.700
Input Price $8.000 / 1M $2.000 / 1M
Output Price $40.000 / 1M $10.000 / 1M
Cache Read Price $0.200 / 1M $0.200 / 1M
Cache Write Price $10.000 / 1M $2.500 / 1M
Total Input Tokens 346,216 191,341
Output Tokens 10,245 5,665
Reasoning Tokens 178,481 32,340
Response Time (avg) 33.44s 14.57s
Response Time (max) 440.05s 79.40s
Response Time (total) 769.21s 335.16s
Parameters ~9.5T total (~878B active) ~2T total (~150B active)
Availability Closed Closed

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.

#13 Claude Fable 5.2

xhigh
Reached the allocated time limit (600 seconds) without receiving showcase output.
Cost
$0.000
Time
600.0s
Tokens
0 tok

#22 GPT-5.6 Sol

medium
Cost
$0.124
Time
57.2s
Tokens
4,199 tok

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Fable 5.2 10.0 10.0 100.0% 0 12.97s 10,608 553 9,868
GPT-5.6 Sol 10.0 10.0 100.0% 0 9.40s 7,302 394 4,706

Quick Compare

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