OpenAI: Models Intelligence, Performance & Price

OpenAI
OpenAI

Analysis of OpenAI's models across key metrics including quality, price, output speed, latency, context window & more. This analysis is intended to support you in choosing the best model provided by OpenAI for your use-case.

Most Intelligent

#1
GPT-5.6 Sol (max)
GPT-5.6 Sol (max)
61
#2
GPT-5.6 Sol (xhigh)
GPT-5.6 Sol (xhigh)
59
#3
GPT-5.6 Sol (high)
GPT-5.6 Sol (high)
57
#4
GPT-5.6 Terra (max)
GPT-5.6 Terra (max)
57
#5
GPT-5.5 (xhigh)
GPT-5.5 (xhigh)
56

Intelligence index

Total 61 models

Fastest

#1
o3-mini (high)
o3-mini (high)
228 t/s
#2
o3-mini
o3-mini
215 t/s
#3
GPT-5.6 Luna (medium)
GPT-5.6 Luna (medium)
187 t/s
#4
GPT-5.6 Luna (high)
GPT-5.6 Luna (high)
181 t/s
#5
GPT-5.6 Luna (xhigh)
GPT-5.6 Luna (xhigh)
178 t/s

Output speed

Total 61 models

Lowest Price

#1
GPT-5 nano (high)
GPT-5 nano (high)
$0.05
#2
GPT-5 nano (medium)
GPT-5 nano (medium)
$0.05
#3
GPT-5 nano (minimal)
GPT-5 nano (minimal)
$0.05
#4
GPT-4.1 nano
GPT-4.1 nano
$0.08
#5
GPT-4o mini
GPT-4o mini
$0.14

Blended price (per 1M tokens)

Total 61 models

Indicates a reasoning model

OpenAI offers 61 models, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across models.

  • For intelligence, the top models on OpenAI are GPT-5.6 Sol (max) (61), GPT-5.6 Sol (xhigh) (59), and GPT-5.6 Sol (high) (57).
  • For output speed, the fastest models are o3-mini (high) (228 t/s), o3-mini (215 t/s), and GPT-5.6 Luna (medium) (187 t/s).
  • For latency, GPT-4.1 nano (0.67s), GPT-5.4 nano (0.73s), and GPT-5.4 mini (0.74s) offer the lowest time to first answer token.
  • For pricing, GPT-5 nano (high) ($0.05), GPT-5 nano (medium) ($0.05), and GPT-5 nano (minimal) ($0.05) offer the lowest blended prices per 1M tokens. Prices vary up to 2.7x across models.
  • For context window size, GPT-5.5 (xhigh) (1M), GPT-5.5 (high) (1M), and GPT-5.4 (xhigh) (1M) support the largest context windows on OpenAI.

Highlights

Artificial Analysis Intelligence Index · Higher is better
Output tokens per second · Higher is better
USD per 1M tokens (blended) · Lower is better

Intelligence Evaluations

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v4.1.1 incorporates 9 evaluations: GDPval-AA v2, 𝜏³-Banking, Terminal-Bench v2.1, SciCode, Humanity's Last Exam, GPQA Diamond, CritPt, AA-Omniscience, AA-LCR
Reasoning models are indicated by a lightbulb icon

Artificial Analysis Intelligence Index v4.1.1 includes: GDPval-AA v2, 𝜏³-Banking, Terminal-Bench v2.1, SciCode, Humanity's Last Exam, GPQA Diamond, CritPt, AA-Omniscience, AA-LCR. See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.

Intelligence Evaluations

Intelligence evaluations measured independently by Artificial Analysis · Higher is better
See more

Agentic real-world work tasks, (Elo-500)/2000

Agentic tool use

Agentic coding & terminal use

Coding

Reasoning & knowledge

Scientific reasoning

Physics reasoning

Knowledge

1 - hallucination rate

AA-LCRUpdated

Long context reasoning

Agentic knowledge work, Elo

Agentic SaaS workflows

Legal agentic work, criterion pass rate

Agentic business operations

Instruction following

Long-horizon agentic tasks

Kubernetes incident root-cause analysis

Visual reasoning

Reasoning models are indicated by a lightbulb icon

While model intelligence generally translates across use cases, specific evaluations may be more relevant for certain use cases.

Artificial Analysis Intelligence Index v4.1.1 includes: GDPval-AA v2, 𝜏³-Banking, Terminal-Bench v2.1, SciCode, Humanity's Last Exam, GPQA Diamond, CritPt, AA-Omniscience, AA-LCR. See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.

Intelligence Index vs. Price

Blended at 7:2:1 (cache-input-output) · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line
Reasoning models are indicated by a lightbulb icon

While higher intelligence models are typically more expensive, they do not all follow the same price-quality curve.

Context Window

Context Window

Context window: tokens limit · Higher is better
Reasoning models are indicated by a lightbulb icon

Larger context windows are relevant to RAG (Retrieval Augmented Generation) LLM workflows which typically involve reasoning and information retrieval of large amounts of data.

Maximum number of combined input & output tokens. Output tokens commonly have a significantly lower limit (varied by model).

Pricing

Intelligence Index vs. Price

Blended at 7:2:1 (cache-input-output) · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line
Reasoning models are indicated by a lightbulb icon

While higher intelligence models are typically more expensive, they do not all follow the same price-quality curve.

Performance Summary

Output Speed vs. Price

Output speed: output tokens per second · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line
Reasoning models are indicated by a lightbulb icon

Tokens per second received while the model is generating tokens (ie. after first chunk has been received from the API for models which support streaming).

Price per token, shown in USD per million tokens. Price is a blend of cache hit, input, and output token prices using the selected ratio (default 7:2:1 cache-input-output).

Speed

Measured by Output Speed (tokens per second)

Output Speed

Output tokens per second · Higher is better
Reasoning models are indicated by a lightbulb icon

Tokens per second received while the model is generating tokens (ie. after first chunk has been received from the API for models which support streaming).

Figures represent performance of the model's first-party API (e.g. OpenAI for o1) or the median across providers where a first-party API is not available (e.g. Meta's Llama models).

Latency

Measured by Time (seconds) to First Token

Latency: Time To First Answer Token

Seconds to first answer token received · Accounts for reasoning model 'thinking' time
Reasoning models are indicated by a lightbulb icon

Time to first answer token received, in seconds, after API request sent. For reasoning models, this includes the 'thinking' time of the model before providing an answer. For models which do not support streaming, this represents time to receive the completion.

End-to-End Response Time

Seconds to output 500 tokens, calculated based on time to first token, 'thinking' time for reasoning models, and output speed

End-to-End Response Time vs. Price

End-to-end response time: end-to-end seconds to output 500 tokens · USD per 1M tokens (blended)
Most attractive quadrant
Pareto line
Reasoning models are indicated by a lightbulb icon

Price per token, shown in USD per million tokens. Price is a blend of cache hit, input, and output token prices using the selected ratio (default 7:2:1 cache-input-output).

Further Analysis
OpenAI logo
GPT-5.6 Sol (max)
1M
Proprietary
61
$1.23
63
120.03
127.93
--
OpenAI logo
GPT-5.6 Sol (xhigh)
1M
Proprietary
59
$0.81
64
55.51
63.36
--
OpenAI logo
GPT-5.6 Sol (high)
1M
Proprietary
57
$0.55
61
13.86
22.02
--
OpenAI logo
GPT-5.6 Terra (max)
1M
Proprietary
57
$0.51
132
143.79
147.59
--
OpenAI logo
GPT-5.5 (xhigh)
1.05M
Proprietary
56
$1.17
72
61.30
68.20
--
OpenAI logo
GPT-5.6 Sol (medium)
1M
Proprietary
56
$0.37
60
4.84
13.14
--
OpenAI logo
GPT-5.5 (high)
1.05M
Proprietary
55
$0.80
68
20.09
27.40
--
OpenAI logo
GPT-5.4 (xhigh)
1.05M
Proprietary
53
$1.10
124
102.64
106.67
--
OpenAI logo
GPT-5.6 Terra (xhigh)
1M
Proprietary
53
$0.31
120
11.98
16.15
--
OpenAI logo
GPT-5.6 Luna (max)
1M
Proprietary
52
$0.05
176
83.59
86.44
--
OpenAI logo
GPT-5.5 (medium)
1.05M
Proprietary
51
$0.50
69
7.28
14.49
--
OpenAI logo
GPT-5.6 Sol (low)
1M
Proprietary
51
$0.23
62
3.45
11.51
--
OpenAI logo
GPT-5.6 Terra (high)
1M
Proprietary
50
$0.22
115
2.44
6.79
--
OpenAI logo
GPT-5.6 Luna (xhigh)
1M
Proprietary
50
$0.03
178
31.03
33.84
--
OpenAI logo
GPT-5.6 Luna (high)
1M
Proprietary
47
$0.02
181
8.13
10.89
--
OpenAI logo
GPT-5.6 Terra (medium)
1M
Proprietary
47
$0.12
113
1.60
6.01
--
OpenAI logo
GPT-5.3 Codex (xhigh)
400k
Proprietary
46*
--
130
74.01
77.86
--
OpenAI logo
GPT-5.5 (low)
1.05M
Proprietary
44
$0.26
72
1.72
8.70
--
OpenAI logo
GPT-5.2 (xhigh)
400k
Proprietary
43*
--
77
132.23
138.73
--
OpenAI logo
GPT-5.6 Sol (Non-reasoning)
1M
Proprietary
42
$0.24
58
1.06
9.74
--
OpenAI logo
GPT-5.6 Terra (low)
1M
Proprietary
41
$0.09
121
1.51
5.65
--
OpenAI logo
GPT-5.4 mini (xhigh)
400k
Proprietary
41
$0.49
178
4.92
7.73
--
OpenAI logo
GPT-5.4 (low)
1.05M
Proprietary
40*
--
99
1.93
6.97
--
OpenAI logo
GPT-5.4 nano (xhigh)
400k
Proprietary
40
$0.15
154
4.86
8.11
--
OpenAI logo
GPT-5.2 (medium)
400k
Proprietary
39*
--
77
6.40
12.90
--
OpenAI logo
GPT-5.6 Luna (medium)
1M
Proprietary
39
$0.01
187
2.22
4.89
--
OpenAI logo
GPT-5.1 (high)
272k
Proprietary
37
$0.30
92
45.58
51.03
--
OpenAI logo
GPT-5.5 (Non-reasoning)
1.05M
Proprietary
36
$0.21
65
1.05
8.73
--
OpenAI logo
GPT-5 (high)
400k
Proprietary
35
$0.26
98
85.10
90.19
--
OpenAI logo
GPT-5.6 Terra (Non-reasoning)
1M
Proprietary
35
$0.10
111
0.77
5.28
--
OpenAI logo
GPT-5 (medium)
400k
Proprietary
35*
--
78
34.67
41.11
--
OpenAI logo
GPT-5.5 Instant (May 2026)
400k
Proprietary
34*
--
--
--
--
--
OpenAI logo
GPT-5.6 Luna (low)
1M
Proprietary
34
$0.01
168
1.94
4.91
--
OpenAI logo
o3-pro
200k
Proprietary
33*
--
--
--
--
--
OpenAI logo
GPT-5 (low)
400k
Proprietary
32*
--
82
8.27
14.33
--
OpenAI logo
GPT-5 mini (medium)
400k
Proprietary
32*
--
83
15.98
22.04
--
OpenAI logo
o3
200k
Proprietary
31*
--
--
--
--
--
OpenAI logo
o3
200k
Proprietary
31*
--
127
7.98
11.91
--
OpenAI logo
GPT-5.4 nano
400k
Proprietary
31*
--
153
5.86
9.12
--
OpenAI logo
GPT-5.4 mini (medium)
272k
Proprietary
30*
--
170
6.00
8.94
--
OpenAI logo
GPT-5.5 Instant (June 2026)
400k
Proprietary
29
$0.54
161
1.13
16.64
12.41
OpenAI logo
GPT-5.4 (Non-reasoning)
1.05M
Proprietary
28*
--
94
0.94
6.26
--
OpenAI logo
GPT-5.6 Luna (Non-reasoning)
1M
Proprietary
27
$0.01
160
0.84
3.96
--
OpenAI logo
GPT-5.2
400k
Proprietary
27*
--
71
1.16
8.23
--
OpenAI logo
o4-mini (high)
200k
Proprietary
26*
--
--
--
--
--
OpenAI logo
o4-mini (high)
200k
Proprietary
26*
--
149
26.50
29.86
--
OpenAI logo
GPT-5 mini (high)
400k
Proprietary
26
$0.04
89
74.53
80.16
--
OpenAI logo
o1
200k
Proprietary
24*
--
--
--
--
--
OpenAI logo
GPT-5.1
400k
Proprietary
21*
--
92
1.04
6.50
--
OpenAI logo
GPT-5 nano (high)
400k
Proprietary
20*
--
150
104.70
108.03
--
OpenAI logo
GPT-4.1
1M
Proprietary
20*
--
105
1.01
5.77
--
OpenAI logo
GPT-5 nano (medium)
400k
Proprietary
19*
--
152
46.54
49.82
--
OpenAI logo
o3-mini
200k
Proprietary
19*
--
215
5.68
8.01
--
OpenAI logo
o1-pro
200k
Proprietary
19*
--
--
--
--
--
OpenAI logo
GPT-5.4 nano
400k
Proprietary
18*
--
153
0.73
4.00
--
OpenAI logo
GPT-5 (minimal)
400k
Proprietary
17*
--
69
1.31
8.52
--
OpenAI logo
GPT-5 (minimal) private
400k
Proprietary
17*
--
--
--
--
--
OpenAI logo
GPT-5.4 mini
272k
Proprietary
17*
--
155
0.74
3.96
--
OpenAI logo
o3-mini (high)
200k
Proprietary
16
--
228
19.78
21.97
--
OpenAI logo
GPT-4.1 mini
1M
Proprietary
15
$0.06
70
0.94
8.06
--
OpenAI logo
GPT-5 mini (minimal)
400k
Proprietary
14*
--
87
1.12
6.86
--
OpenAI logo
GPT-5 mini (minimal) private
400k
Proprietary
14*
--
--
--
--
--
OpenAI logo
GPT-4o (Nov)
128k
Proprietary
11*
--
125
0.86
4.86
--
OpenAI logo
GPT-4.1 nano
1M
Proprietary
10
$0.03
152
0.67
3.96
--
OpenAI logo
GPT-4o (Aug)
128k
Proprietary
9*
--
83
1.07
7.05
--
OpenAI logo
GPT-4o (Aug)
128k
Proprietary
9*
--
--
--
--
--
OpenAI logo
GPT-4o (May)
128k
Proprietary
8*
--
70
1.38
8.48
--
OpenAI logo
GPT-5 nano (minimal)
400k
Proprietary
8*
--
144
0.85
4.33
--
OpenAI logo
GPT-5 nano (minimal) private
400k
Proprietary
8*
--
--
--
--
--
OpenAI logo
GPT-4 Turbo
128k
Proprietary
8*
--
31
3.02
19.11
--
OpenAI logo
GPT-4
8.19k
Proprietary
7*
--
--
--
--
--
OpenAI logo
GPT-4o mini
128k
Proprietary
7*
--
--
--
--
--
OpenAI logo
GPT-4o mini
128k
Proprietary
7*
--
86
1.25
7.05
--
OpenAI logo
GPT-3.5 Turbo
4.1k
Proprietary
3*
--
--
--
--
--
OpenAI logo
GPT-5.4 Pro (xhigh)
1.05M
Proprietary
--
--
--
--
--
--

Key definitions

Maximum number of combined input & output tokens. Output tokens commonly have a significantly lower limit (varied by model).

Frequently Asked Questions

Common questions about OpenAI

The most intelligent model available on OpenAI is GPT-5.6 Sol (max) with an Intelligence Index score of 61.

The fastest model on OpenAI by output speed is o3-mini (high) at 228.0 tokens per second.

The model with the lowest time to first answer token on OpenAI is GPT-4.1 nano at 0.67s. Lower latency means faster initial response time.

The most affordable model on OpenAI by blended price is GPT-5 nano (high) at $0.05 per 1M tokens (7:2:1 cache hit/input/output ratio).

Prices on OpenAI vary up to 224x across models, from $0.05 per 1M tokens for GPT-5 nano (high) to $12.00 per 1M tokens for GPT-4 Turbo.

Yes, OpenAI offers an OpenAI-compatible API, making it easy to switch from OpenAI or use existing OpenAI SDK integrations.

Yes, all 61 models on OpenAI support JSON mode for structured output.

Yes, all 61 models on OpenAI support function calling (tool use).

Yes, provider performance can vary over time due to infrastructure changes, load balancing, and updates. We continuously benchmark all providers and display historical performance trends in the "Over Time" charts.

When choosing a model on OpenAI, consider: intelligence (for quality-sensitive tasks), output speed (for throughput-intensive tasks), latency (for interactive applications requiring quick first responses), pricing (for cost-sensitive workloads), and features like context window size, JSON mode, or function calling support.