Model vs model

Claude Haiku 4.5 vs Agnes 2.5 Pro Alpha

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 · Claude Haiku 4.5
Sources · All public sources

Winner

Claude Haiku 4.5

Anthropic

14benchmarks won

Chat / text

Versus · Everyday chatbot

Claude Haiku 4.5 leads this compare set for everyday chatbot.

Claude Haiku 4.514 of 14 wins

Verified and stable

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

Agnes 2.5 Pro Alpha

Unknown

0benchmarks won

Reasoning / math / science

The cases in full

Claude Haiku 4.5 case

Chat / text

Agnes 2.5 Pro Alpha case

Reasoning / math / science

What changes the outcome

Claude Haiku 4.5: 88 visible benchmark gaps still leave room for the result to move.
Agnes 2.5 Pro Alpha: 121 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.
Agnes 2.5 Pro Alpha remains the strongest alternative once you change use case, mode, or missing-evidence assumptions.

Open full compare workspace Open evidence page Open disagreement page

Advanced framings and X composerNeutral, contrarian, open-model, and skeptical variants

Neutral analystLead with the recommendation, then attach the reason and warning.Claude Haiku 4.5 leads this compare set for everyday chatbot.

ContrarianPush against the easy read and keep the strongest alternative live.Contrarian take: Claude Haiku 4.5 leads this compare set for everyday chatbot.

Open-model angleBias the framing toward open weights and source transparency.Open-model angle: Model compare · Claude Haiku 4.5 vs Agnes 2.5 Pro Alpha

Don't trust the headlineLead with the warning before you let the claim travel.Don't trust the headline: Model compare · Claude Haiku 4.5 vs Agnes 2.5 Pro Alpha

Decisive benchmarks

16 of 138 benchmarks


Intelligence Index AA · index Text · Chat / text	2472% exact aliasverified runtime Row details Raw value 24 Percentile 72% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	40n/a exact aliasverified runtimeContext only Row details Raw value 40 Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Time to first token AA · s Text · Chat / text	1.04s83% exact aliasverified runtime Row details Raw value 1.04s Percentile 83% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	2.09sn/a exact aliasverified runtimeContext only Row details Raw value 2.09s Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Coding Index AA · index Code · Coding	16n/a proxy backfilledbackfilledContext only Row details Raw value 16 Percentile n/a Last updated recent Eligibility Fallback benchmark identity is visible for context but excluded from default ranking. Identity benchmark proxy (0.58) Source label Claude 3.5 Haiku Source row	59n/a exact aliasverified runtimeContext only Row details Raw value 59 Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Output Speed AA · tokens/s Text · Chat / text	90.1 tokens/s50.9% exact aliasverified runtime Row details Raw value 90.1 tokens/s Percentile 50.9% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	132 tokens/sn/a exact aliasverified runtimeContext only Row details Raw value 132 tokens/s Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Time to first answer token AA · s Text · Chat / text	1.04s88.4% exact aliasverified runtime Row details Raw value 1.04s Percentile 88.4% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	17.24sn/a exact aliasverified runtimeContext only Row details Raw value 17.24s Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Blended price AA · /1M tokens Text · Chat / text	$2 /1M tokens28.2% exact aliasverified runtime Row details Raw value $2 /1M tokens Percentile 28.2% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	$0.6 /1M tokensn/a exact aliasverified runtimeContext only Row details Raw value $0.6 /1M tokens Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Input price AA · /1M input tokens Text · Chat / text	$1 /1M input tokens32.2% exact aliasverified runtime Row details Raw value $1 /1M input tokens Percentile 32.2% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	$0.5 /1M input tokensn/a exact aliasverified runtimeContext only Row details Raw value $0.5 /1M input tokens Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Output price AA · /1M output tokens Text · Chat / text	$5 /1M output tokens25.9% exact aliasverified runtime Row details Raw value $5 /1M output tokens Percentile 25.9% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	$0.9 /1M output tokensn/a exact aliasverified runtimeContext only Row details Raw value $0.9 /1M output tokens Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
GPQA AA · % Text · Reasoning / math / science	64.6%49.4% exact aliasverified runtime Row details Raw value 64.6% Percentile 49.4% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	87.6%n/a exact aliasverified runtimeContext only Row details Raw value 87.6% Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
Humanity's Last Exam AA · % Text · Reasoning / math / science	4.2%23.3% exact aliasverified runtime Row details Raw value 4.2% Percentile 23.3% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	33.6%n/a exact aliasverified runtimeContext only Row details Raw value 33.6% Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
CritPt AA · % Text · Reasoning / math / science	0%60.3% exact aliasverified runtime Row details Raw value 0% Percentile 60.3% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	10.9%n/a exact aliasverified runtimeContext only Row details Raw value 10.9% Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a
SciCode AA · % Code · Coding	34.4%58.8% exact aliasverified runtime Row details Raw value 34.4% Percentile 58.8% Last updated recent Eligibility headline eligible Identity provider alias (0.94) Source label Claude 4.5 Haiku (Non-reasoning) Source row	42.2%n/a exact aliasverified runtimeContext only Row details Raw value 42.2% Percentile n/a Last updated recent Eligibility preview_model Identity provider alias (0.94) Source label Agnes 2.5 Pro Alpha Source row	n/a

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Intelligence Index

AA · index

Text · Chat / text

2472%

exact aliasverified runtime

Row details

Raw value: 24
Percentile: 72%
Last updated: recent
Eligibility: headline eligible
Identity: provider alias (0.94)
Source label: Claude 4.5 Haiku (Non-reasoning)

Claude Haiku 4.5 vs Agnes 2.5 Pro Alpha

Claude Haiku 4.5

Claude Haiku 4.5 leads this compare set for everyday chatbot.

Agnes 2.5 Pro Alpha

Claude Haiku 4.5 case

Agnes 2.5 Pro Alpha 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.

Claude Haiku 4.5 vs Agnes 2.5 Pro Alpha

Claude Haiku 4.5

Claude Haiku 4.5 leads this compare set for everyday chatbot.

Agnes 2.5 Pro Alpha

Claude Haiku 4.5 case

Agnes 2.5 Pro Alpha 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