Model vs model

Gemini 2.5 Pro vs A.X-K2

A debate-ready pair page: current winner, strongest alternative, decisive benchmarks, and the warning that should travel with the claim.

Use case · Everyday chatbot
Winner · Gemini 2.5 Pro
Sources · All public sources

Winner

Gemini 2.5 Pro

Google

12benchmarks won

Document understanding
Vision understanding

Versus · Everyday chatbot

Gemini 2.5 Pro leads this compare set for everyday chatbot.

Gemini 2.5 Pro12 of 12 wins

Verified but aging

0 shared benchmarks are still too close to call, so the win stays conditional. This compare uses all public sources, with provider-official evidence labeled separately.

Close calls: 0
Sources: All public

Full compare workspace Disagreement page

100%win share

Challenger

A.X-K2

Unknown

0benchmarks won

Chat / text
Reasoning / math / science

The cases in full

Gemini 2.5 Pro case

Document understanding
Vision understanding

A.X-K2 case

Chat / text
Reasoning / math / science

What changes the outcome

Gemini 2.5 Pro: 82 visible benchmark gaps still leave room for the result to move.
A.X-K2: 126 visible benchmark gaps still leave room for the result to move.

Why this result is surprising

The visible shared evidence is more decisive than usual for this compare set.
Very few shared benchmarks are decisively separating these models.

Why this is not a clean win

0 shared benchmarks are still too close to call, so the win stays conditional. This compare uses all public sources, with provider-official evidence labeled separately.
A.X-K2 remains the strongest alternative once you change use case, mode, or missing-evidence assumptions.

Open full compare workspace Open evidence page Open disagreement page

Decisive benchmarks

12 of 138 benchmarks


Intelligence Index AA · index Text · Chat / text	2370.1% exact aliasverified runtime Row details Raw value 23 Percentile 70.1% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Preview (May' 25) Source row	35n/a exact aliasverified runtimeContext only Row details Raw value 35 Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
Coding Index AA · index Code · Coding	3347.9% exact aliasverified runtime Row details Raw value 33 Percentile 47.9% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	39n/a exact aliasverified runtimeContext only Row details Raw value 39 Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
Agentic Index AA · index Code · Coding	728.6% exact aliasverified runtime Row details Raw value 7 Percentile 28.6% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	26n/a exact aliasverified runtimeContext only Row details Raw value 26 Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
Openness Index AA · index Text · Chat / text	65.4% exact aliasverified runtime Row details Raw value 6 Percentile 5.4% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	50n/a exact aliasverified runtimeContext only Row details Raw value 50 Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
GPQA AA · % Text · Reasoning / math / science	82.2%81.2% exact aliasverified runtime Row details Raw value 82.2% Percentile 81.2% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Preview (May' 25) Source row	85.7%n/a exact aliasverified runtimeContext only Row details Raw value 85.7% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
Humanity's Last Exam AA · % Text · Reasoning / math / science	19.9%82.6% exact aliasverified runtime Row details Raw value 19.9% Percentile 82.6% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Preview (May' 25) Source row	29.6%n/a exact aliasverified runtimeContext only Row details Raw value 29.6% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
CritPt AA · % Text · Reasoning / math / science	2.6%84.3% exact aliasverified runtime Row details Raw value 2.6% Percentile 84.3% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	8.9%n/a exact aliasverified runtimeContext only Row details Raw value 8.9% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
SciCode AA · % Code · Coding	41.6%83.7% exact aliasverified runtime Row details Raw value 41.6% Percentile 83.7% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Preview (May' 25) Source row	38.5%n/a exact aliasverified runtimeContext only Row details Raw value 38.5% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
AA-Omniscience accuracy AA · % Text · Chat / text	39.1%90.7% exact aliasverified runtime Row details Raw value 39.1% Percentile 90.7% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	18.6%n/a exact aliasverified runtimeContext only Row details Raw value 18.6% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
AA-Omniscience non-hallucination AA · % Text · Chat / text	9.1%29.2% exact aliasverified runtime Row details Raw value 9.1% Percentile 29.2% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	67%n/a exact aliasverified runtimeContext only Row details Raw value 67% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
GDPval-AA AA · rating Text · Professional reasoning	66935.9% exact aliasverified runtime Row details Raw value 669 Percentile 35.9% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	1,109n/a exact aliasverified runtimeContext only Row details Raw value 1,109 Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a
Long Context Reasoning AA · % Document · Long context	66%80.5% exact aliasverified runtime Row details Raw value 66% Percentile 80.5% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Gemini 2.5 Pro Source row	66%n/a exact aliasverified runtimeContext only Row details Raw value 66% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label A.X-K2 Source row	n/a

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Intelligence Index

AA · index

Text · Chat / text

2370.1%

exact aliasverified runtime

Row details

Raw value: 23
Percentile: 70.1%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro Preview (May' 25)

Source row

35n/a

exact aliasverified runtimeContext only

Row details

Raw value: 35
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

Coding Index

AA · index

Code · Coding

3347.9%

exact aliasverified runtime

Row details

Raw value: 33
Percentile: 47.9%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

39n/a

exact aliasverified runtimeContext only

Row details

Raw value: 39
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

Agentic Index

AA · index

Code · Coding

728.6%

exact aliasverified runtime

Row details

Raw value: 7
Percentile: 28.6%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

26n/a

exact aliasverified runtimeContext only

Row details

Raw value: 26
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

Openness Index

AA · index

Text · Chat / text

65.4%

exact aliasverified runtime

Row details

Raw value: 6
Percentile: 5.4%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

50n/a

exact aliasverified runtimeContext only

Row details

Raw value: 50
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

GPQA

AA · %

Text · Reasoning / math / science

82.2%81.2%

exact aliasverified runtime

Row details

Raw value: 82.2%
Percentile: 81.2%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro Preview (May' 25)

Source row

85.7%n/a

exact aliasverified runtimeContext only

Row details

Raw value: 85.7%
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

Humanity's Last Exam

AA · %

Text · Reasoning / math / science

19.9%82.6%

exact aliasverified runtime

Row details

Raw value: 19.9%
Percentile: 82.6%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro Preview (May' 25)

Source row

29.6%n/a

exact aliasverified runtimeContext only

Row details

Raw value: 29.6%
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

CritPt

AA · %

Text · Reasoning / math / science

2.6%84.3%

exact aliasverified runtime

Row details

Raw value: 2.6%
Percentile: 84.3%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

8.9%n/a

exact aliasverified runtimeContext only

Row details

Raw value: 8.9%
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

SciCode

AA · %

Code · Coding

41.6%83.7%

exact aliasverified runtime

Row details

Raw value: 41.6%
Percentile: 83.7%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro Preview (May' 25)

Source row

38.5%n/a

exact aliasverified runtimeContext only

Row details

Raw value: 38.5%
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

AA-Omniscience accuracy

AA · %

Text · Chat / text

39.1%90.7%

exact aliasverified runtime

Row details

Raw value: 39.1%
Percentile: 90.7%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

18.6%n/a

exact aliasverified runtimeContext only

Row details

Raw value: 18.6%
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

AA-Omniscience non-hallucination

AA · %

Text · Chat / text

9.1%29.2%

exact aliasverified runtime

Row details

Raw value: 9.1%
Percentile: 29.2%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

67%n/a

exact aliasverified runtimeContext only

Row details

Raw value: 67%
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

GDPval-AA

AA · rating

Text · Professional reasoning

66935.9%

exact aliasverified runtime

Row details

Raw value: 669
Percentile: 35.9%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

1,109n/a

exact aliasverified runtimeContext only

Row details

Raw value: 1,109
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

Long Context Reasoning

AA · %

Document · Long context

66%80.5%

exact aliasverified runtime

Row details

Raw value: 66%
Percentile: 80.5%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Gemini 2.5 Pro

Source row

66%n/a

exact aliasverified runtimeContext only

Row details

Raw value: 66%
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: A.X-K2

Source row

n/a

Gemini 2.5 Pro vs A.X-K2

Gemini 2.5 Pro

Gemini 2.5 Pro leads this compare set for everyday chatbot.

A.X-K2

Gemini 2.5 Pro case

A.X-K2 case

What changes the outcome

Why this result is surprising

Why this is not a clean win

Share the recommendation with the source data attached.

Open or copy the stable surfaces

Use the exact public framing

Pick the voice before you post

Compose a post that keeps the warning attached

Decisive benchmarks

Loading model comparison.

Gemini 2.5 Pro vs A.X-K2

Gemini 2.5 Pro

Gemini 2.5 Pro leads this compare set for everyday chatbot.

A.X-K2

Gemini 2.5 Pro case

A.X-K2 case

What changes the outcome

Why this result is surprising

Why this is not a clean win

Share the recommendation with the source data attached.

Open or copy the stable surfaces

Use the exact public framing

Pick the voice before you post

Compose a post that keeps the warning attached

Decisive benchmarks