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VECTOR WIREAI INTELLIGENCE
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Agnes 2.5 Pro Alpha vs Solar Mini4

Sapiens AI · released

Wins 2 of 5 areas

Agents · Reasoning

Upstage · released

Wins 2 of 5 areas

Coding · Long documents

The two are evenly matched.Agnes 2.5 Pro Alpha is better at reasoning and agents; Solar Mini4 at coding and long documents.

Scores updated · 10 tests both models report · How we compare

Where each one wins

Tests won in each of the five areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.

Coding and long documents rest on a single test each.

What it costs

Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.

Agnes 2.5 Pro AlphaNo current price is tracked.
Solar Mini4$0.10 to read · $0.40 to write$0.50Price from Artificial Analysis

The biggest differences

The three tests each model wins by the widest margin. Scores are out of 100.

Where Agnes 2.5 Pro Alpha pulls ahead

  • Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+15.1points aheadAgnes 2.5 Pro Alpha33.5Solar Mini418.4
  • Research-level physics problemsCritPt+9.5points aheadAgnes 2.5 Pro Alpha10.9Solar Mini41.4
  • Very hard expert questions across many subjectsHumanity's Last Exam+7.8points aheadAgnes 2.5 Pro Alpha33.6Solar Mini425.8

Where Solar Mini4 pulls ahead

  • Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+52.3points aheadSolar Mini464.2Agnes 2.5 Pro Alpha11.9
  • Reasons across sets of long documentsAA-LCR+7.6points aheadSolar Mini483.3Agnes 2.5 Pro Alpha75.7
  • Code for real scientific research problemsSciCode+4.7points aheadSolar Mini447.6Agnes 2.5 Pro Alpha42.9

Every test, side by side

All 10 tests both models report. The winning score is in its model's colour; marks a score checked independently.

CodingSolar Mini4
  • SciCodeSolar Mini4 by 4.742.947.6+4.7

Full coding ranking

AgentsAgnes 2.5 Pro Alpha
  • Terminal-Bench 4.0Agnes 2.5 Pro Alpha by 231+2
  • GDPValtie29.429.5tie

Full agents ranking

ReasoningAgnes 2.5 Pro Alpha

Full reasoning ranking

FactsEven

Full facts ranking

Long documentsSolar Mini4
  • AA-LCRSolar Mini4 by 7.675.783.3+7.6

Full long documents ranking

Other results2 tests, not counted

Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.

Questions people ask

Which is better, Agnes 2.5 Pro Alpha or Solar Mini4?

Agnes 2.5 Pro Alpha and Solar Mini4 each win two of the five areas where both have results. Agnes 2.5 Pro Alpha wins agents and reasoning; Solar Mini4 wins coding and long documents. They are level on facts.

Which is better for coding?

Solar Mini4. It wins the one coding test both models report.

How do you compare the two?

We use the 10 benchmark tests both models have published scores on. The verdict counts the 8 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 2 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.