Claude Sonnet 4.6 vs Mistral Medium 3.1 (Non-Reasoning)
Wins 7 of 7 areas
Coding · Agents · Reasoning · Facts · Images and charts · Long documents · Following instructions
Wins 0 of 7 areas
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Claude Sonnet 4.6 is the stronger all-rounder.Mistral Medium 3.1 (Non-Reasoning) is cheaper.
Scores updated · 24 tests both models report · How we compare
Where each one wins
Tests won in each of the seven 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.
- CodingWriting and fixing software30Claude Sonnet 4.63 of 3 tests
- AgentsCarrying out multi-step tasks on its own30Claude Sonnet 4.63 of 3 tests
- ReasoningHard problems that need careful thinking30Claude Sonnet 4.63 of 3 tests
- FactsGetting facts right instead of making them up30Claude Sonnet 4.63 of 3 tests
- Images and chartsUnderstanding pictures, charts and video20Claude Sonnet 4.62 of 2 tests
- Long documentsFinding answers in very long texts10Claude Sonnet 4.61 of 1 test
- Following instructionsDoing exactly what it is asked10Claude Sonnet 4.61 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.
Mistral Medium 3.1 (Non-Reasoning) costs 87% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Sonnet 4.6 pulls ahead
- Command-line tasks in a real terminalTerminal-Bench 2.1+57.3points ahead
- Hard command-line tasks in a real terminalTerminal-Bench Hard+42.4points ahead
- Reasons across sets of long documentsAA-LCR+37.3points ahead
Where Mistral Medium 3.1 (Non-Reasoning) pulls ahead
No clear win on a test scored out of 100.
Every test, side by side
All 24 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Sonnet 4.6
- Terminal-Bench 2.1Claude Sonnet 4.6 by 57.371.213.9+57.3
- Terminal-Bench HardClaude Sonnet 4.6 by 42.45310.6+42.4
- SciCodeClaude Sonnet 4.6 by 17.750.132.4+17.7
AgentsClaude Sonnet 4.6
- GDPValClaude Sonnet 4.6 by 36.736.70+36.7
- τ-Bench V3 · BankingClaude Sonnet 4.6 by 26.234.48.2+26.2
- Terminal-Bench 4.0Claude Sonnet 4.6 by 330+3
ReasoningClaude Sonnet 4.6
- Humanity's Last ExamClaude Sonnet 4.6 by 28.933.64.7+28.9
- GPQA DiamondClaude Sonnet 4.6 by 28.787.558.8+28.7
- CritPtClaude Sonnet 4.6 by 3.13.10+3.1
FactsClaude Sonnet 4.6
- AA-Omniscience · Non-hallucinationClaude Sonnet 4.6 by 36.251.615.4+36.2
- AA-Omniscience · AccuracyClaude Sonnet 4.6 by 20.140.920.8+20.1
- Vectara HHEM hallucination ratelower is betterClaude Sonnet 4.6 by 12.110.622.7+12.1
Images and chartsClaude Sonnet 4.6
- MMMU-ProClaude Sonnet 4.6 by 19.173.354.2+19.1
- LMArena · VisionClaude Sonnet 4.6 by 111 rating points12831172+111 rating
Long documentsClaude Sonnet 4.6
- AA-LCRClaude Sonnet 4.6 by 37.38042.7+37.3
Following instructionsClaude Sonnet 4.6
- IFBenchClaude Sonnet 4.6 by 16.856.639.8+16.8
Other results8 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-OmniscienceClaude Sonnet 4.6 by 58.512.2-46.3+58.5
- Artificial Analysis Coding IndexClaude Sonnet 4.6 by 42.56320.5+42.5
- τ²-Bench Telecom (AA run)Claude Sonnet 4.6 by 35.175.740.6+35.1
- AA Agentic IndexClaude Sonnet 4.6 by 3033.13.1+30
- AA IntelligenceClaude Sonnet 4.6 by 20.930.19.2+20.9
- vectara_factual_consistencyClaude Sonnet 4.6 by 12.189.477.3+12.1
- vectara_avg_summary_lengthMistral Medium 3.1 (Non-Reasoning) by 28.2 rating points114.7142.9+28.2 rating
- vectara_answer_ratetie99.999.7tie
Questions people ask
Which is better, Claude Sonnet 4.6 or Mistral Medium 3.1 (Non-Reasoning)?
Claude Sonnet 4.6 wins all seven areas where both have results: coding, agents, reasoning, facts, images and charts, long documents and following instructions. Mistral Medium 3.1 (Non-Reasoning) wins none, but costs 87% less.
Which is better for coding?
Claude Sonnet 4.6. It wins 3 of the 3 coding tests both models report; Mistral Medium 3.1 (Non-Reasoning) wins none.
Which is cheaper?
Claude Sonnet 4.6 costs $3.00 per million input tokens and $15.00 per million output tokens; Mistral Medium 3.1 (Non-Reasoning) costs $0.40 and $2.00. That makes Mistral Medium 3.1 (Non-Reasoning) about 87% cheaper for the same work.
How do you compare the two?
We use the 24 benchmark tests both models have published scores on. The verdict counts the 16 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 8 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.