Translate Spoken English to Spanish in Real Time

Tested prompts for english to spanish voice translator compared across 5 leading AI models.

BEST BY JUDGE SCORE Claude Haiku 4.5 8/10

The prompt we tested

You are a professional English-to-Spanish voice translator. Transcribe and translate the spoken English input into natural, conversational Spanish as if you were a live interpreter.

Rules:
Output in this exact format: 1) 'English:' followed by the cleaned-up English transcript, 2) 'Spanish:' followed by the natural Spanish translation, 3) 'Pronunciation:' a simple phonetic guide for the Spanish text. Use neutral Latin American Spanish, preserve tone (formal/informal) based on context, and keep the translation concise and speakable aloud.

Spoken English input:
Hi, excuse me, could you tell me where the nearest pharmacy is? I need to pick up a prescription before it closes. Also, do you know if they accept credit cards?

Provide the translation now.

Model comparison

ModelQualityCostLatencyTokens
Claude Opus 4.7 8 $0.0296 7.0s 276 / 339
Claude Haiku 4.5 8 $0.0016 2.9s 184 / 284
GPT-5.4 8 $0.0033 4.0s 164 / 192
Gemini 2.5 Pro 8 $0.0013 12.4s 165 / 213
Grok 4.1 Fast Reasoning 8 $0.0002 6.3s 315 / 189

Outputs

Claude Opus 4.7 8/10
English: Hi, excuse me, could you tell me where the nearest pharmacy is? I need to pick up a prescription before it closes. Also, do you know if they accept credit cards?

Spanish: Hola, disculpe, ¿podría decirme dónde está la farmacia más cercana? Necesito recoger una receta antes de que cierre. Además, ¿sabe si aceptan tarjetas de crédito?

Pronunciation: OH-lah, dees-KOOL-peh, ¿poh-DREE-ah deh-SEER-meh DOHN-deh ehs-TAH lah far-MAH-see-ah mahs sehr-KAH-nah? Neh-seh-SEE-toh reh-koh-HEHR oo-nah reh-SEH-tah AHN-tehs deh keh see-EH-rreh. Ah-deh-MAHS, ¿SAH-beh see ah-SEHP-tahn tar-HEH-tahs deh KREH-dee-toh?
Judge notes: The output is clean, accurate, and production-ready, but the pronunciation guide uses inconsistent stress markers (mixing capitalization conventions) and the phonetic rendering of "farmacia" slightly misrepresents the syllable stress for a non-native learner.
Claude Haiku 4.5 8/10
**English:**
Hi, excuse me, could you tell me where the nearest pharmacy is? I need to pick up a prescription before it closes. Also, do you know if they accept credit cards?

**Spanish:**
Hola, disculpe, ¿podría decirme dónde queda la farmacia más cercana? Necesito recoger una receta antes de que cierre. Además, ¿sabe si aceptan tarjetas de crédito?

**Pronunciation:**
OH-lah, dees-KOOL-peh, ¿poh-DREE-ah deh-SEER-meh DON-deh KWEH-dah lah far-MAH-see-ah mahs ser-KAH-nah? Neh-seh-SEE-toh reh-KOH-hehr OO-nah reh-SEH-tah AHN-tehs deh keh see-EH-rreh. Ah-DEH-mahs, ¿SAH-beh see ah-SEHP-tahn tar-HEH-tahs deh KREH-dee-toh?
Judge notes: The translation and pronunciation guide are accurate and natural, but the pronunciation uses inconsistent conventions (mixing hyphens and capitalization styles) and "reh-KOH-hehr" slightly misrepresents the soft Spanish 'j' sound in "recoger," which could mislead a non-Spanish speaker.
GPT-5.4 8/10
English: Hi, excuse me, could you tell me where the nearest pharmacy is? I need to pick up a prescription before it closes. Also, do you know if they accept credit cards?

Spanish: Hola, disculpe, ¿podría decirme dónde está la farmacia más cercana? Necesito recoger una receta antes de que cierre. Además, ¿sabe si aceptan tarjetas de crédito?

Pronunciation: OH-lah, dees-KOOL-peh, poh-DREE-ah deh-SEER-meh DON-deh es-TAH lah far-MAH-syah mahs sehr-KAH-nah? neh-seh-SEE-toh reh-koh-HEHR OO-nah reh-SEH-tah AN-tes deh keh SYEH-rreh. ah-deh-MAHS, SAH-beh see ah-SEHP-tan tar-HEH-tahs deh KREH-dee-toh?
Judge notes: The output is accurate, well-formatted, and production-ready, but the pronunciation guide has minor inconsistencies (e.g., "SYEH-rreh" is awkward for a non-linguist, and "sehr-KAH-nah" uses "sehr" which may confuse English speakers into a German-sounding vowel).
Gemini 2.5 Pro 8/10
**English:**
Hi, excuse me, could you tell me where the nearest pharmacy is? I need to pick up a prescription before it closes. Also, do you know if they accept credit cards?

**Spanish:**
Hola, disculpe, ¿me podría decir dónde está la farmacia más cercana? Necesito recoger una receta antes de que cierre. Además, ¿sabe si aceptan tarjetas de crédito?

**Pronunciation:**
OH-lah, dees-COOL-peh, meh poh-DREE-ah deh-SEER DOHN-deh ehs-TAH lah far-MAH-see-ah mahs sehr-KAH-nah? neh-seh-SEE-toh rreh-koh-HER OO-nah rreh-SEH-tah AHN-tehs deh keh SYEH-rreh. ah-deh-MAHS, SAH-beh see ah-SEHP-tahn tar-HEH-tahs deh KREH-dee-toh?
Judge notes: The translation and pronunciation guide are accurate and natural, but the phonetic guide uses inconsistent capitalization conventions and some approximations (e.g., "KREH-dee-toh" vs. standard stress patterns) that would need minor refinement before professional deployment.
Grok 4.1 Fast Reasoning 8/10
English: Hi, excuse me, could you tell me where the nearest pharmacy is? I need to pick up a prescription before it closes. Also, do you know if they accept credit cards?

Spanish: Hola, disculpe, ¿me podría decir dónde está la farmacia más cercana? Necesito recoger una receta antes de que cierre. ¿También sabe si aceptan tarjetas de crédito?

Pronunciation: OH-lah, dees-KOOL-peh, meh POH-dree-ah deh-SEER DOHN-deh es-TAH lah fahr-MAH-see-ah mahs keh-RAH-sah? Neh-seh-SEE-toh reh-koh-HEHR OO-nah reh-SEH-tah ahn-TES deh keh SYER-eh. TAM-bee-en SAH-beh see ahk-sep-TAHN tar-HEH-tahs deh KREH-dee-toh?
Judge notes: The output is accurate and well-formatted, but the pronunciation guide has a minor error ("keh-RAH-sah" for "cercana" should be closer to "sehr-KAH-nah") that would mislead a user trying to speak the phrase aloud.

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