BasedAGIBasedAGI

customer_experience

Best LLM for Multilingual Support

Ranked models for handling multilingual support conversations with cultural awareness and clarity.

This page is high-intent, but the current benchmark evidence for this use case is still limited. Treat the leader below as provisional.

Provisional leader

anthropic/claude-sonnet-4

Best current option from the available benchmark evidence, but not yet a strong winner claim.

external/anthropic/claude-sonnet-4

23.6%

Score

32.9%

Confidence

28

Evidence

$6.00

per 1M tokens

Ranked Models

30

Evidence Quality

83%

Evidence Points

28

Top Signal

LanguageBench: overall:mean

Benchmark Sources

48

Last Updated

10h ago

All Ranked Models

30 of 30 models
RankModelScore
🥇claude-sonnet-4

Strong on LanguageBench overall:mean and LanguageBench Translation Official (Split) translation_to:bleu

23.6%
🥈gemini-2.5-flash

Strong on LanguageBench overall:mean and FACTS Benchmark Suite facts_grounding_score_pct

22.8%
🥉gemini-2.5-pro

Strong on FACTS Benchmark Suite facts_grounding_score_pct and Vectara HHEM Leaderboard overall_hallucination_error_pct

20.9%
#4gemini-3.1-pro-preview

Strong on Vals Finance Agent overall_accuracy_pct and FACTS Benchmark Suite facts_search_score_pct

19.6%
#5gpt-4.1-20250414

Strong on Vectara HHEM Leaderboard overall_hallucination_error_pct and Galileo Agent Leaderboard v2 Avg AC

19.6%
#6gpt-5-2025-08-07

Strong on FACTS Benchmark Suite facts_grounding_score_pct and Vals Finance Agent overall_accuracy_pct

18.7%
#7gpt-5-mini-2025-08-07

Strong on Vals Finance Agent overall_accuracy_pct and Vals Finance Agent complex_retrieval_accuracy_pct

18.7%
#9gemini-3-flash-preview

Strong on Vals Finance Agent overall_accuracy_pct and Vectara HHEM Leaderboard overall_answer_rate_pct

16.4%
#10Llama-3.1-70B-Instruct

Strong on LanguageBench overall:mean and Open LLM Leaderboard IFEval ifeval

15.4%
#12Llama-3.3-70B-Instruct

Strong on LanguageBench overall:mean and Open LLM Leaderboard IFEval ifeval

15.3%
#13claude-sonnet-4.6

Strong on Vals Finance Agent overall_accuracy_pct and Vectara HHEM Leaderboard overall_hallucination_error_pct

15.3%
#14Grok-4-0709

Strong on Vals Finance Agent overall_accuracy_pct and FACTS Benchmark Suite facts_grounding_score_pct

15.2%
#15gpt-5.2-2025-12-11

Strong on FACTS Benchmark Suite facts_grounding_score_pct and Vals Finance Agent overall_accuracy_pct

15.1%
#16gemini-3.1-flash-lite-preview

Strong on FACTS Benchmark Suite facts_grounding_score_pct and Vectara HHEM Leaderboard overall_hallucination_error_pct

15.1%
#17phi-4

Strong on Vectara HHEM Leaderboard overall_hallucination_error_pct and LanguageBench overall:mean

15.0%
#18gemini-3-pro-preview

Strong on Vals Finance Agent overall_accuracy_pct and Vectara HHEM Leaderboard overall_answer_rate_pct

14.2%
#20qwen-2.5-72b-instruct

Strong on Open LLM Leaderboard IFEval ifeval and Open LLM Leaderboard MMLU-Pro mmlu_pro_accuracy_pct

13.2%
#21gpt-5.4-2026-03-05

Strong on Vectara HHEM Leaderboard overall_hallucination_error_pct and Vals Finance Agent overall_accuracy_pct

13.1%
#27claude-opus-4-5-20251101

Strong on FACTS Benchmark Suite facts_grounding_score_pct and Vectara HHEM Leaderboard overall_hallucination_error_pct

12.0%
#28grok-4-fast-reasoning

Strong on Vectara HHEM Leaderboard overall_answer_rate_pct and Vals Finance Agent overall_accuracy_pct

12.0%
#35gpt-5.1-2025-11-13

Strong on Vals Finance Agent overall_accuracy_pct and Vals Finance Agent complex_retrieval_accuracy_pct

11.5%
#39gpt-4.1-mini-20250414

Strong on OpenVLM MTVQA Official mtvqa_score_pct and Galileo Agent Leaderboard v2 Avg AC

11.1%
#45Qwen3-Embedding-0.6B

Strong on MTEB STS & Summarization Proxy Official sts_score_pct and MTEB Retrieval and Rerank (Official) retrieval_score_pct

10.7%
#47grok-4-1-fast-reasoning

Strong on Vals Finance Agent overall_accuracy_pct and Vectara HHEM Leaderboard overall_answer_rate_pct

10.6%
#49o3-20250416

Strong on SciArena Leaderboard rating_elo and FACTS Benchmark Suite facts_search_score_pct

10.4%
#72claude-opus-4-6-thinking

Strong on Vals Finance Agent overall_accuracy_pct and Vals Finance Agent complex_retrieval_accuracy_pct

9.7%
#74claude-opus-4.7

Strong on Vals Finance Agent overall_accuracy_pct and Vals Finance Agent complex_retrieval_accuracy_pct

9.6%
#101kimi-k2.5-thinking

Strong on Vals Finance Agent overall_accuracy_pct and Vals CorpFin v2 overall_accuracy_pct

8.8%
#105gpt-4o

Strong on CRMArena Function Calling overall_score_pct and OpenVLM MTVQA Official mtvqa_score_pct

8.7%
#108MaziyarPanahi/calme-3.2-instruct-78b

Strong on Open LLM Leaderboard MMLU-Pro mmlu_pro_accuracy_pct and Open LLM Leaderboard GPQA gpqa

8.6%

Head-to-Head: #1 vs #2

#1

Top Pick

anthropic/claude-sonnet-4

Strong on LanguageBench overall:mean and LanguageBench Translation Official (Split) translation_to:bleu

23.6%

Conf 32.9%

#2

gemini-2.5-flash

Strong on LanguageBench overall:mean and FACTS Benchmark Suite facts_grounding_score_pct

22.8%

Conf 31.3%

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