Model vs model

Step 3.5 Flash 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 · Step 3.5 Flash
Sources · All public sources

Winner

Step 3.5 Flash

StepFun

0benchmarks won

Search / tool use
Chat / text

Versus · Everyday chatbot

Step 3.5 Flash leads this compare set for everyday chatbot.

Step 3.5 Flash0 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

Model vs model

Step 3.5 Flash 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 · Step 3.5 Flash
Sources · All public sources

Winner

Step 3.5 Flash

StepFun

0benchmarks won

Search / tool use
Chat / text

Versus · Everyday chatbot

Step 3.5 Flash leads this compare set for everyday chatbot.

Step 3.5 Flash0 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


Intelligence Index AA · index Text · Chat / text	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 Step 3.5 Flash 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
Openness Index AA · index Text · Chat / text	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 Step 3.5 Flash 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	83.1%n/a exact aliasverified runtimeContext only Row details Raw value 83.1% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Step 3.5 Flash 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	21.1%n/a exact aliasverified runtimeContext only Row details Raw value 21.1% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Step 3.5 Flash 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	2.5%n/a exact aliasverified runtimeContext only Row details Raw value 2.5% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Step 3.5 Flash 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	40.4%n/a exact aliasverified runtimeContext only Row details Raw value 40.4% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Step 3.5 Flash 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	23.6%n/a exact aliasverified runtimeContext only Row details Raw value 23.6% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Step 3.5 Flash 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	14.3%n/a exact aliasverified runtimeContext only Row details Raw value 14.3% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Step 3.5 Flash 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
Long Context Reasoning AA · % Document · Long context	48%n/a exact aliasverified runtimeContext only Row details Raw value 48% Percentile n/a Last updated recent Eligibility benchmark_derived_model Identity provider alias (0.94) Source label Step 3.5 Flash 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

Intelligence Index

AA · index

Text · Chat / text

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: Step 3.5 Flash

Step 3.5 Flash vs A.X-K2

Step 3.5 Flash

Step 3.5 Flash leads this compare set for everyday chatbot.

Loading model comparison.

Step 3.5 Flash vs A.X-K2

Step 3.5 Flash

Step 3.5 Flash leads this compare set for everyday chatbot.

A.X-K2

Step 3.5 Flash 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