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Claude Fable 5.2 (low) vs GPT-6.1 Terra

The average score is effectively tied at 8.6 vs 8.6. GPT-6.1 Terra has the lower benchmark cost at $0.184 vs $3.471. GPT-6.1 Terra is faster at 4.08s vs 9.28s, with pass rates of 84.1% vs 84.1%.

Last updated at: 2026-11-10

Compared models

Rank
#92
Total Output Tokens
26,679
Response Time (avg)
9.28s
Total Cost
$3.471
Rank
#89
Total Output Tokens
4,906
Response Time (avg)
4.08s
Total Cost
$0.184
Recommended model GPT-6.1 Terra

It has the best score here (8.6), while costing about 18.9x less than Claude Fable 5.2 (low).

Detailed comparison

Metric Claude Fable 5.2 Claude Fable 5.2 low Release: 2026-11-09 GPT-6.1 Terra GPT-6.1 Terra none Release: 2026-10-26
Score 8.6 8.6
Rank #92 #89
Reliability 9.6 10.0
Consistency 9.6 9.3
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 84.1% 84.1%
Flaky tests 1 2
Total Runs 69 69
Cost per result 18.265 1.021
Total Cost $3.471 $0.184
Input Price $8.000 / 1M $1.000 / 1M
Output Price $40.000 / 1M $5.000 / 1M
Cache Read Price $0.200 / 1M $0.050 / 1M
Cache Write Price $10.000 / 1M $1.250 / 1M
Total Input Tokens 300,393 159,129
Output Tokens 11,011 4,906
Reasoning Tokens 15,668 0
Response Time (avg) 9.28s 4.08s
Response Time (max) 49.92s 40.32s
Response Time (total) 213.39s 93.75s
Parameters ~9.5T total (~878B active) ~1T total (~60B 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.

#92 Claude Fable 5.2

low
Cost
$0.084
Time
21.6s
Tokens
2,240 tok

#89 GPT-6.1 Terra

none
Cost
$0.017
Time
36.8s
Tokens
3,297 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 5.8 9.9 33.3% 0 6.83s 10,608 2,015 1,286
GPT-6.1 Terra 8.2 7.2 88.9% 1 1.86s 7,302 387 0

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