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GPT-5.2 Chat (default) vs Inkling (medium)

Inkling (medium) leads on average score with 7.4 vs 7.0. Inkling (medium) has the lower benchmark cost at $0.527 vs $0.594. GPT-5.2 Chat (default) is faster at 7.43s vs 16.98s, with pass rates of 66.7% vs 75.4%.

Last updated at: 2026-10-19

Compared models

Rank
#184
Total Output Tokens
29,742
Response Time (avg)
7.43s
Total Cost
$0.594
Rank
#159
Total Output Tokens
69,605
Response Time (avg)
16.98s
Total Cost
$0.527
Recommended model Inkling (medium)

It has the strongest score in this comparison (7.4) and the best overall balance of cost and response time across 2 models.

Detailed comparison

Metric GPT-5.2 Chat GPT-5.2 Chat default Release: 2025-12-11 Inkling Inkling medium Release: 2026-07-18 Free Available
Score 7.0 7.4
Rank #184 #159
Reliability 10.0 10.0
Consistency 8.7 8.2
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 66.7% 75.4%
Flaky tests 4 5
Total Runs 69 69
Cost per result 4.564 3.594
Total Cost $0.594 $0.527
Input Price $1.750 / 1M $0.950 / 1M
Output Price $14.000 / 1M $4.050 / 1M
Cache Read Price $0.175 / 1M $0.160 / 1M
Cache Write Price N/A N/A
Total Input Tokens 101,104 257,138
Output Tokens 10,414 13,830
Reasoning Tokens 19,328 55,775
Response Time (avg) 7.43s 16.98s
Response Time (max) 38.52s 85.12s
Response Time (total) 163.35s 390.45s
Parameters ~400B total (~17B active) 975B total (41B active)
Availability Closed Open source

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.

#184 GPT-5.2 Chat

default
Cost
$0.010
Time
15.3s
Tokens
797 tok

#159 Thinking Machines: Inkling

medium
Cost
$0.004
Time
11.2s
Tokens
852 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
GPT-5.2 Chat 8.8 7.8 88.9% 1 9.82s 7,305 843 5,888
Inkling 8.4 7.8 77.8% 1 25.20s 7,374 525 14,457

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