Best AI Model for Translation & Localization
Translating text between languages, localizing content, and multilingual support. Needs strong multilingual training.
Our Verdict
GPT-5 has the broadest and most accurate multilingual support at $1.25/$10. For European languages specifically, Mistral Large 3 at $2/$5 output is excellent value (trained heavily on EU languages). Budget pick: GPT-4o Mini at $0.15/$0.60 handles common language pairs well. For Asian languages, Claude Sonnet 4.6 and Gemini perform strongly. Avoid open-source models for translation — they're typically weaker on less common languages.
Top Picks
Broadest language support, most consistent quality across language pairs
Best for: General multilingual translation
Input
$1.25/1M
Output
$10/1M
Context
128K
Max Output
16K
Excellent European languages at $2/$5 — trained on EU data
Best for: European language translation
Input
$2/1M
Output
$5/1M
Context
128K
Max Output
16K
Handles common language pairs at 90%+ of flagship quality for 10% of the cost
Best for: Budget high-volume translation
Input
$0.15/1M
Output
$0.6/1M
Context
128K
Max Output
16K
What Matters for Translation
Key Factors
- •Multilingual quality
- •MMLU-Pro score
- •Cost efficiency
Tips
- ✓GPT-4o and Claude have the broadest language support
- ✓Mistral models excel at European languages specifically
- ✓For high-volume translation, budget models can save 90%+ vs flagships
Full Ranking (All Compatible Models)
| Rank | Model | Input | Output | MMLU-Pro | Score |
|---|---|---|---|---|---|
| #1 | GPT-4o MiniOpenAI | $0.15 | $0.60 | 68% | 103 |
| #2 | Mistral Large 3Mistral | $2.00 | $5.00 | 83% | 99 |
| #3 | GPT-5OpenAI | $1.25 | $10.00 | 88.5% | 97 |
| #4 | Gemini 2.5 FlashGoogle | $0.15 | $0.60 | 76% | 96 |
| #5 | GLM-4.7Zhipu AI | $0.60 | $2.20 | 84.3% | 95 |
| #6 | Gemini 3 FlashGoogle | $0.50 | $3.00 | 78% | 91 |
| #7 | o3OpenAI | $0.40 | $1.60 | 87% | 87 |
| #8 | GLM-5Zhipu AI | $1.00 | $3.20 | 70.4% | 87 |
| #9 | Gemini 2.5 ProGoogle | $1.25 | $10.00 | 87.5% | 87 |
| #10 | MiniMax M2.5MiniMax | $0.30 | $1.20 | 82% | 86 |
| #11 | Gemini 3.1 ProGoogle | $2.00 | $12.00 | 91% | 86 |
| #12 | Gemini 3 ProGoogle | $2.00 | $12.00 | 89.8% | 85 |
| #13 | DeepSeek R1DeepSeek | $0.55 | $2.19 | 84% | 85 |
| #14 | GPT-5.2 CodexOpenAI | $1.75 | $14.00 | 89% | 84 |
| #15 | GPT-5.3 CodexOpenAI | $2.00 | $16.00 | 90% | 83 |
| #16 | o4-miniOpenAI | $1.10 | $4.40 | 85% | 81 |
| #17 | Mistral Medium 3Mistral | $0.40 | $2.00 | 76% | 77 |
| #18 | Llama 4 MaverickMeta | $0.31 | $0.85 | 80.5% | 76 |
| #19 | Llama 4 ScoutMeta | $0.18 | $0.63 | 74.2% | 75 |
| #20 | DeepSeek V3DeepSeek | $0.14 | $0.28 | 78% | 73 |
| #21 | Claude Haiku 4.5Anthropic | $0.80 | $4.00 | 69.4% | 68 |
| #22 | GPT-4oOpenAI | $2.50 | $10.00 | 80.5% | 68 |
| #23 | Grok 4xAI | $3.00 | $15.00 | 86% | 66 |
| #24 | Claude Sonnet 4.6Anthropic | $3.00 | $15.00 | 86% | 66 |
| #25 | Claude Opus 4.6Anthropic | $5.00 | $25.00 | 89.5% | 66 |
| #26 | Claude Sonnet 4.5Anthropic | $3.00 | $15.00 | 84.5% | 66 |