GPT-5.6 Sol vs Claude Sonnet 5: Release Comparison

Comparison of the GPT-5.6 Sol and Claude Sonnet 5 releases: 6 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 12 models.

  • For intelligence, GPT-5.6 Sol scores highest: GPT-5.6 Sol (max) at 47, against Claude Sonnet 5 (Adaptive Reasoning, Max Effort) at 38 for Claude Sonnet 5.
  • For output speed, Claude Sonnet 5 is fastest: Claude Sonnet 5 (Adaptive Reasoning, Max Effort) at 75 t/s, against GPT-5.6 Sol (xhigh) at 62 t/s for GPT-5.6 Sol.
  • For cost per task, GPT-5.6 Sol is cheapest: GPT-5.6 Sol (low) at $0.26, against Claude Sonnet 5 (Adaptive Reasoning, Low Effort) at $0.51 for Claude Sonnet 5.

Releases compared

Intelligence

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v4.3 incorporates 10 evaluations: AA-Briefcase, GDPval-AA v2, AutomationBench-AA, Terminal-Bench v4.0, SciCode, Humanity's Last Exam, GDP.pdf, CritPt, AA-Omniscience, AA-LCR v1.1
Estimate (independent evaluation forthcoming)

Intelligence Index vs. Cost per Intelligence Index Task

Artificial Analysis Intelligence Index · Weighted average cost (USD) per Artificial Analysis Intelligence Index task
Most attractive quadrant
GPT-5.6 Sol
Claude Sonnet 5
Pareto line

Cost

Cost per Intelligence Index Task

Weighted average cost (USD) per Artificial Analysis Intelligence Index task, segmented by token type. Lower is better

Speed & Latency

Output Speed

Output tokens per second · Higher is better

Capability Scores

Capability Indices

Measures the performance of models on specific capabilities and industries
Finance & Accounting Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Strategy & Ops Index

Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Legal Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better

Healthcare & Medical Index

Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better

Engineering Index

Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2, AA-Briefcase, Terminal-Bench v4.0 · Higher is better

Economics Index

Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2, AA-Briefcase, AA-LCR v1.1 · Higher is better

Further details

Input modality
Output modality
Weights
Provider Benchmarks
GPT-5.6 Sol (max)
OpenAI logoOpenAI
47
49
55
50
46
49
53
$1.99
$3.1
$4.00
$20.00
$0.40
$3,465
29k
17k
90M
59
134.67s
134.67s
143.18s
477.32s
-
1M
Jul 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
Amazon BedrockOpenAIMicrosoft Azure
GPT-5.6 Sol (xhigh)
OpenAI logoOpenAI
44
47
52
49
43
45
52
$1.18
$3.1
$4.00
$20.00
$0.40
$2,082
20k
10k
51M
62
40.14s
40.14s
48.18s
316.92s
-
1M
Jul 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
OpenAIMicrosoft Azure
GPT-5.6 Sol (high)
OpenAI logoOpenAI
42
46
51
48
42
43
50
$0.81
$3.1
$4.00
$20.00
$0.40
$1,487
13k
6k
34M
58
10.99s
10.99s
19.65s
231.91s
-
1M
Jul 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
OpenAIMicrosoft Azure
GPT-5.6 Sol (medium)
OpenAI logoOpenAI
39
43
49
45
39
40
48
$0.50
$3.1
$4.00
$20.00
$0.40
$997
8k
3k
21M
61
3.64s
3.64s
11.89s
129.82s
-
1M
Jul 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
OpenAI
Claude Sonnet 5 (Adaptive Reasoning, Max Effort)
Anthropic logoAnthropic
38
41
40
43
43
40
50
$5.09
$1.5
$2.00
$10.00
$0.20
$6,998
118k
88k
367M
75
216.54s
216.54s
223.20s
916.14s
-
1M
Jun 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
GoogleMicrosoft AzureAnthropicAmazon Bedrock
Claude Sonnet 5 (Adaptive Reasoning, Xhigh Effort)
Anthropic logoAnthropic
35
38
37
39
-
36
46
$2.87
$1.5
$2.00
$10.00
$0.20
$3,255
65k
44k
135M
66
24.85s
24.85s
32.45s
632.02s
-
1M
Jun 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
Anthropic
GPT-5.6 Sol (low)
OpenAI logoOpenAI
34
39
42
42
36
35
45
$0.26
$3.1
$4.00
$20.00
$0.40
$637
4k
837
13M
58
3.08s
3.08s
11.78s
69.23s
-
1M
Jul 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
OpenAI
Claude Sonnet 5 (Adaptive Reasoning, High Effort)
Anthropic logoAnthropic
32
34
34
35
-
32
42
$1.79
$1.5
$2.00
$10.00
$0.20
$2,086
44k
28k
89M
61
4.78s
4.78s
13.01s
444.17s
-
1M
Jun 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
Anthropic
Claude Sonnet 5 (Non-reasoning, High Effort)
Anthropic logoAnthropic
29
-
-
-
-
-
-
-
$1.5
$2.00
$10.00
$0.20
-
-
-
-
61
0.68s
0.68s
8.82s
-
-
1M
Jun 2026
-
No

Supports: text and image

Supports: text

Not available
-
AnthropicAmazon Bedrock
Claude Sonnet 5 (Adaptive Reasoning, Medium Effort)
Anthropic logoAnthropic
28
31
31
32
-
29
38
$1.00
$1.5
$2.00
$10.00
$0.20
$1,218
27k
15k
51M
59
1.18s
1.18s
9.66s
277.32s
-
1M
Jun 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
Anthropic
GPT-5.6 Sol (Non-reasoning)
OpenAI logoOpenAI
28
-
-
-
-
-
33
-
$3.1
$4.00
$20.00
$0.40
-
-
-
-
61
1.15s
1.15s
9.34s
-
-
1M
Jul 2026
-
No

Supports: text and image

Supports: text

Not available
-
OpenAIAmazon Bedrock
Claude Sonnet 5 (Adaptive Reasoning, Low Effort)
Anthropic logoAnthropic
25
27
27
29
-
26
34
$0.51
$1.5
$2.00
$10.00
$0.20
$653
15k
7k
25M
57
0.92s
0.92s
9.74s
161.65s
-
1M
Jun 2026
-
Yes

Supports: text and image

Supports: text

Not available
-
Anthropic