Agnes 2.5 Pro Alpha vs Solar Open2 250B
Wins 2 of 5 areas
Reasoning · Long documents
Wins 0 of 5 areas
—
Agnes 2.5 Pro Alpha wins more areas, narrowly.
Scores updated · 14 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.
- ReasoningHard problems that need careful thinking30Agnes 2.5 Pro Alpha3 of 3 tests
- Long documentsFinding answers in very long texts10Agnes 2.5 Pro Alpha1 of 1 test
- CodingWriting and fixing software11Even1 each
- AgentsCarrying out multi-step tasks on its own11Even1 each
- FactsGetting facts right instead of making them up11Even1 each
Long documents rests on a single test.
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
- Command-line tasks in a real terminalTerminal-Bench 2.1+22.8points ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+14.7points ahead
- Research-level physics problemsCritPt+5.2points ahead
Where Solar Open2 250B pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+62.7points ahead
- Customer-service tasks in a simulated bankτ-Bench V3 · Banking+9.2points ahead
- Code for real scientific research problemsSciCode+5.1points ahead
Every test, side by side
All 14 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingEven
- Terminal-Bench 2.1Agnes 2.5 Pro Alpha by 22.86744.2+22.8
- SciCodeSolar Open2 250B by 5.142.948+5.1
AgentsEven
- τ-Bench V3 · BankingSolar Open2 250B by 9.212.421.6+9.2
- GDPValAgnes 2.5 Pro Alpha by 1.829.427.6+1.8
ReasoningAgnes 2.5 Pro Alpha
- CritPtAgnes 2.5 Pro Alpha by 5.210.95.7+5.2
- Humanity's Last ExamAgnes 2.5 Pro Alpha by 5.133.628.5+5.1
- GPQA DiamondAgnes 2.5 Pro Alpha by 1.987.685.7+1.9
FactsEven
- AA-Omniscience · Non-hallucinationSolar Open2 250B by 62.711.974.6+62.7
- AA-Omniscience · AccuracyAgnes 2.5 Pro Alpha by 14.733.518.8+14.7
Long documentsAgnes 2.5 Pro Alpha
- AA-LCRAgnes 2.5 Pro Alpha by 475.771.7+4
Other results4 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.
- AA-OmniscienceSolar Open2 250B by 23.3-25.1-1.8+23.3
- Artificial Analysis Coding IndexAgnes 2.5 Pro Alpha by 13.858.845+13.8
- AA IntelligenceAgnes 2.5 Pro Alpha by 2.126.824.7+2.1
- AA Agentic IndexAgnes 2.5 Pro Alpha by 1.629.427.8+1.6
Questions people ask
Which is better, Agnes 2.5 Pro Alpha or Solar Open2 250B?
Agnes 2.5 Pro Alpha wins two of the five areas where both have results: reasoning and long documents. Solar Open2 250B wins none. They are level on coding, agents and facts.
Which is better for coding?
Neither. They win 1 coding test each of the 2 both models report.
How do you compare the two?
We use the 14 benchmark tests both models have published scores on. The verdict counts the 10 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 4 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.