Model vs model

Claude Opus 5 (Adaptive Reasoning, Low Effort) 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 Opus 5 (Adaptive Reasoning, Low Effort)
Sources · All public sources

Winner

Claude Opus 5 (Adaptive Reasoning, Low Effort)

Anthropic

0benchmarks won

Chat / text
Reasoning / math / science

Versus · Everyday chatbot

Claude Opus 5 (Adaptive Reasoning, Low Effort) leads this compare set for everyday chatbot.

Claude Opus 5 (Adaptive Reasoning, Low Effort)0 of 0 wins

Thin verified coverage

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

0%win share

Challenger

Agnes 2.5 Pro Alpha

Unknown

0benchmarks won

Reasoning / math / science

The cases in full

Claude Opus 5 (Adaptive Reasoning, Low Effort) case

Chat / text
Reasoning / math / science

Agnes 2.5 Pro Alpha case

Reasoning / math / science

What changes the outcome

Claude Opus 5 (Adaptive Reasoning, Low Effort): 120 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 Opus 5 (Adaptive Reasoning, Low Effort) leads this compare set for everyday chatbot.

ContrarianPush against the easy read and keep the strongest alternative live.Contrarian take: Claude Opus 5 (Adaptive Reasoning, Low Effort) leads this compare set for everyday chatbot.

Open-model angleBias the framing toward open weights and source transparency.Open-model angle: Model compare · Claude Opus 5 (Adaptive Reasoning, Low Effort) 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 Opus 5 (Adaptive Reasoning, Low Effort) vs Agnes 2.5 Pro Alpha

Decisive benchmarks

17 of 138 benchmarks


Intelligence Index AA · index Text · Chat / text	52n/a exact aliasverified runtimeContext only Row details Raw value 52 Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) 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	4.29sn/a exact aliasverified runtimeContext only Row details Raw value 4.29s Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) Source row	2.11sn/a exact aliasverified runtimeContext only Row details Raw value 2.11s 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	67n/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 Claude Opus 5 (Adaptive Reasoning, Low Effort) 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
Agentic Index AA · index Code · Coding	42n/a exact aliasverified runtimeContext only Row details Raw value 42 Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) Source row	25n/a exact aliasverified runtimeContext only Row details Raw value 25 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	59.5 tokens/sn/a exact aliasverified runtimeContext only Row details Raw value 59.5 tokens/s Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) Source row	128.9 tokens/sn/a exact aliasverified runtimeContext only Row details Raw value 128.9 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	4.29sn/a exact aliasverified runtimeContext only Row details Raw value 4.29s Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) Source row	17.63sn/a exact aliasverified runtimeContext only Row details Raw value 17.63s 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	$10 /1M tokensn/a exact aliasverified runtimeContext only Row details Raw value $10 /1M tokens Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) 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	$5 /1M input tokensn/a exact aliasverified runtimeContext only Row details Raw value $5 /1M input tokens Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) 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	$25 /1M output tokensn/a exact aliasverified runtimeContext only Row details Raw value $25 /1M output tokens Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) 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	88.9%n/a exact aliasverified runtimeContext only Row details Raw value 88.9% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) 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	43.4%n/a exact aliasverified runtimeContext only Row details Raw value 43.4% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) 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	23.1%n/a exact aliasverified runtimeContext only Row details Raw value 23.1% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Claude Opus 5 (Adaptive Reasoning, Low Effort) 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

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Claude Opus 5 (Adaptive Reasoning, Low Effort) leads this compare set for everyday chatbot.

Claude Opus 5 (Adaptive Reasoning, Low Effort)0 of 0 wins

Thin verified coverage

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

Sources

All public

Intelligence Index

AA · index

Text · Chat / text

52n/a

exact aliasverified runtimeContext only

Row details

Raw value: 52
Percentile: n/a
Last updated: recent
Eligibility: benchmark_derived_model
Identity: provider alias (0.94)
Source label: Claude Opus 5 (Adaptive Reasoning, Low Effort)

Claude Opus 5 (Adaptive Reasoning, Low Effort) vs Agnes 2.5 Pro Alpha

Claude Opus 5 (Adaptive Reasoning, Low Effort)

Claude Opus 5 (Adaptive Reasoning, Low Effort) leads this compare set for everyday chatbot.

Agnes 2.5 Pro Alpha

Claude Opus 5 (Adaptive Reasoning, Low Effort) 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

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Claude Opus 5 (Adaptive Reasoning, Low Effort) vs Agnes 2.5 Pro Alpha

Claude Opus 5 (Adaptive Reasoning, Low Effort)

Claude Opus 5 (Adaptive Reasoning, Low Effort) leads this compare set for everyday chatbot.

Agnes 2.5 Pro Alpha

Claude Opus 5 (Adaptive Reasoning, Low Effort) 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