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healthcare

Best LLM for Medical Coding

Compare models for extracting coding-relevant facts and suggesting medical codes.

#1 Recommendation

gemini-2.5-pro

Strong on FACTS Benchmark Suite facts_grounding_score_pct (100%) and Vectara HHEM Leaderboard overall_hallucination_error_pct (76%)

external/google/gemini-2-5-pro

25.5%

Score

42.4%

Confidence

30

Evidence

Runners-up:#2 gemini-3-pro-preview (25.1%)#3 gpt-4.1-20250414 (22.5%)#4 claude-sonnet-4-20250514 (20.6%)

Ranked Models

30

Evidence Quality

81%

Scoring

Benchmark-backed

Top Signal

FACTS Benchmark Suite: facts_grounding_score_pct

All Ranked Models

Max params:
Min confidence:
30 of 30
RankModelScore
#1gemini-2.5-pro

Strong on FACTS Benchmark Suite facts_grounding_score_pct (100%) and Vectara HHEM Leaderboard overall_hallucination_error_pct (76%)

25.5%
#2gemini-3-pro-preview

Strong on FACTS Benchmark Suite facts_grounding_score_pct (88%) and Vals MedQA overall_accuracy_pct (99%)

25.1%
#3gpt-4.1-20250414

Strong on Galileo Agent Leaderboard v2 Healthcare AC (100%) and MMLongBench-Doc Leaderboard acc_score_pct (75%)

22.5%
#4claude-sonnet-4-20250514
20.6%
#5gemini-2.5-flash
20.2%
#6gpt-5-mini-2025-08-07
20.0%
#7Grok-4-0709
19.7%
#8google/gemini-3.1-pro-preview
19.2%
#9claude-opus-4-5-20251101
18.9%
#10gpt-5-2025-08-07
18.7%
#11openai/gpt-5.4-2026-03-05
18.3%
#12anthropic/claude-sonnet-4.6
17.9%
#13gemini-3-flash-preview
16.6%
#14gpt-5.1-2025-11-13
16.3%
#15xai-org/grok-4-fast-reasoning
15.3%
#16xai-org/grok-4-1-fast-reasoning
14.3%
#17anthropic/claude-opus-4-6-thinking
14.2%
#18gpt-5.2-2025-12-11
14.1%
#19google/gemini-3.1-flash-lite-preview
13.7%
#20qwen-2.5-72b-instruct
13.6%
#21anthropic/claude-opus-4-5-20251101-thinking
13.4%
#22kimi/kimi-k2.5-thinking
12.8%
#23anthropic/claude-sonnet-4-5-20250929-thinking
12.6%
#24anthropic/claude-opus-4-1-20250805
12.4%
#25gpt-4o
12.4%
#27x-ai/grok-3
11.8%
#28o3-20250416
11.7%
#29xai-org/grok-4-1-fast-non-reasoning
11.5%
#31grok/grok-4.20-beta-0309-reasoning
11.0%
#32mistralai/mistral-large-2512
10.9%

Head-to-Head: #1 vs #2

#1

Top Pick

gemini-2.5-pro

Strong on FACTS Benchmark Suite facts_grounding_score_pct (100%) and Vectara HHEM Leaderboard overall_hallucination_error_pct (76%)

25.5%

Conf 42.4%

#2

gemini-3-pro-preview

Strong on FACTS Benchmark Suite facts_grounding_score_pct (88%) and Vals MedQA overall_accuracy_pct (99%)

25.1%

Conf 32.7%

Full Comparison with Benchmark Evidence →
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