Claude Opus 4.5 vs Sarvam M (Reasoning)
Wins 5 of 5 areas
Coding · Reasoning · Facts · Long documents · Following instructions
Wins 0 of 5 areas
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Claude Opus 4.5 is the stronger all-rounder.
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 thinking30Claude Opus 4.53 of 3 tests
- CodingWriting and fixing software20Claude Opus 4.52 of 2 tests
- FactsGetting facts right instead of making them up20Claude Opus 4.52 of 2 tests
- Long documentsFinding answers in very long texts10Claude Opus 4.51 of 1 test
- Following instructionsDoing exactly what it is asked10Claude Opus 4.51 of 1 test
Long documents and following instructions 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.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Opus 4.5 pulls ahead
- Graduate-level biology, physics and chemistry questionsGPQA Diamond+45points ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+44.7points ahead
- Code for real scientific research problemsSciCode+31.7points ahead
Where Sarvam M (Reasoning) pulls ahead
No clear win on a test scored out of 100.
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.
CodingClaude Opus 4.5
- Terminal-Bench HardClaude Opus 4.5 by 44.7472.3+44.7
- SciCodeClaude Opus 4.5 by 31.749.517.8+31.7
ReasoningClaude Opus 4.5
- GPQA DiamondClaude Opus 4.5 by 4586.641.6+45
- Humanity's Last ExamClaude Opus 4.5 by 2730.13.1+27
- CritPtClaude Opus 4.5 by 4.64.60+4.6
FactsClaude Opus 4.5
- AA-Omniscience · AccuracyClaude Opus 4.5 by 31.446.615.2+31.4
- AA-Omniscience · Non-hallucinationClaude Opus 4.5 by 29.6399.4+29.6
Following instructionsClaude Opus 4.5
- IFBenchClaude Opus 4.5 by 26.25831.8+26.2
Other results5 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.
- τ²-Bench Telecom (AA run)Claude Opus 4.5 by 89.589.50+89.5
- AA-OmniscienceClaude Opus 4.5 by 75.614-61.6+75.6
- AA Agentic IndexClaude Opus 4.5 by 59.659.60+59.6
- Artificial Analysis Coding IndexClaude Opus 4.5 by 40.347.87.5+40.3
- AA IntelligenceClaude Opus 4.5 by 23.829.15.3+23.8
Questions people ask
Which is better, Claude Opus 4.5 or Sarvam M (Reasoning)?
Claude Opus 4.5 wins all five areas where both have results: coding, reasoning, facts, long documents and following instructions. Sarvam M (Reasoning) wins none.
Which is better for coding?
Claude Opus 4.5. It wins 2 of the 2 coding tests both models report; Sarvam M (Reasoning) wins none.
How do you compare the two?
We use the 14 benchmark tests both models have published scores on. The verdict counts the 9 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 5 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.