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Claude Fable 5.2 (medium) vs GPT-6.1 Terra (low)

GPT-6.1 Terra (low) leads on average score with 9.3 vs 9.1. GPT-6.1 Terra (low) has the lower benchmark cost at $0.221 vs $3.582. GPT-6.1 Terra (low) is faster at 6.05s vs 9.78s, with pass rates of 88.4% vs 85.5%.

Last updated at: 2026-11-10

Compared models

Rank
#52
Total Output Tokens
30,464
Response Time (avg)
9.78s
Total Cost
$3.582
Rank
#34
Total Output Tokens
12,656
Response Time (avg)
6.05s
Total Cost
$0.221
Recommended model GPT-6.1 Terra (low)

It has the best score here (9.3), while costing about 16.2x less than Claude Fable 5.2 (medium).

Detailed comparison

Metric Claude Fable 5.2 Claude Fable 5.2 medium Release: 2026-11-09 GPT-6.1 Terra GPT-6.1 Terra low Release: 2026-10-26
Score 9.1 9.3
Rank #52 #34
Reliability 9.4 10.0
Consistency 9.3 9.7
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 88.4% 85.5%
Flaky tests 2 1
Total Runs 69 69
Cost per result 18.849 1.162
Total Cost $3.582 $0.221
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 295,326 157,463
Output Tokens 9,699 4,879
Reasoning Tokens 20,765 7,777
Response Time (avg) 9.78s 6.05s
Response Time (max) 52.36s 43.50s
Response Time (total) 224.98s 139.21s
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.

#52 Claude Fable 5.2

medium
Cost
$0.098
Time
25.2s
Tokens
2,594 tok

#34 GPT-6.1 Terra

low
Cost
$0.011
Time
24.9s
Tokens
2,238 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 8.2 7.2 88.9% 1 8.02s 10,608 561 3,861
GPT-6.1 Terra 10.0 10.0 100.0% 0 3.51s 7,302 393 938

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