Benchmark Almanac

Voice Arena Brazilian Portuguese

Gemini 3.8 Flash-Lite TTS 1,127 leads since September 2026
Gemini 3.8 Flash-Lite TTS 1,134 leads since September 2026
Only in system cards

Models generate speech in Brazilian Portuguese. Listeners compare anonymous clips, and preference votes determine independent language Elo ratings.

Each language has an independent leaderboard. Topic filters stay within its vote pool.

Made by
Voice Arena
Kind
Audio understanding and voice
Level
Everyday
Scored
Ranked by votes
Answers
Open-ended
Tasks
All public
Last in a system card
September 2026
Last model added
September 2026
Scores refreshed
November 12th, 2026
13
Entries on its own leaderboard, 7 models we track
2
System cards report it, from 1 lab

Gemini 3.8 Flash-Lite TTS leads with 1,127 among models released by September 2026

Best score per entry from the benchmark's own leaderboard, read on November 12th, 2026. Where a model ran with several settings or harnesses, we keep its best. Names in gray aren't in our model list: fine-tunes, agent systems, products and older models. They don't count toward leaders.

Gemini 3.8 Flash-Lite TTS leads with 1,134, claims included

Best score per model from every source, including labs’ own numbers and claims Epoch AI collected from reports and papers. Labs pick their own settings, so a claim can beat an independent run of the same model.

The newest model with a score here came out in September 2026, and nobody has tested a newer one. Among the 20 highest-ranked models on the capability index, these have no score yet:

Bars start at 800.

  1. 1 Gemini 3.8 Flash-Lite TTS 1,127
  2. 2 Gemini 3.8 Flash TTS 1,097
  3. 3 Gemini 3.1 Flash TTS 1,089
  4. 4 Cartesia Sonic-3.6 1,078
  5. 5 ElevenLabs Eleven v4 1,070
  6. 6 Cartesia Sonic-3.5 1,034
  7. 7 ElevenLabs Eleven v3 1,034
  8. 8 Gradium TTS 960
  9. 9 Cartesia Sonic-3 954
  10. 10 GPT-4o Mini TTS 940
  11. 11 Dragon HD Omni 885
  12. 12 Grok TTS 881
  13. 13 MiniMax Speech 2.8 HD 851

Source: Official Voice Arena Brazilian Portuguese leaderboard

#EntryScoreSettingDateSource
1 Gemini 3.8 Flash-Lite TTS 1,127 Sep 2026 Official leaderboard
2 Gemini 3.8 Flash TTS 1,097 Sep 2026 Official leaderboard
3 Gemini 3.1 Flash TTS 1,089 Apr 2026 Official leaderboard
4 Cartesia Sonic-3.6 1,078 Official leaderboard
5 ElevenLabs Eleven v4 1,070 Official leaderboard
6 Cartesia Sonic-3.5 1,034 Official leaderboard
7 ElevenLabs Eleven v3 1,034 Official leaderboard
8 Gradium TTS 960 Official leaderboard
9 Cartesia Sonic-3 954 Official leaderboard
10 GPT-4o Mini TTS 940 Mar 2025 Official leaderboard
11 Dragon HD Omni 885 Dec 2025 Official leaderboard
12 Grok TTS 881 Apr 2026 Official leaderboard
13 MiniMax Speech 2.8 HD 851 Jan 2026 Official leaderboard
#ModelScoreSettingDateSource
1 Gemini 3.8 Flash-Lite TTS 1,134 Sep 2026 Lab model card
2 Gemini 3.8 Flash TTS 1,104 Sep 2026 Lab model card
3 Gemini 3.1 Flash TTS 1,089 Apr 2026 Official leaderboard
4 GPT-4o Mini TTS 940 Mar 2025 Official leaderboard
5 Dragon HD Omni 885 Dec 2025 Official leaderboard
6 Grok TTS 881 Apr 2026 Official leaderboard
7 MiniMax Speech 2.8 HD 851 Jan 2026 Official leaderboard

Labs report scores for 2 models in their cards. Switch the scores above to rank them together.

3 models have held number one on the official leaderboard since 2023 3 models have held number one with claims included since 2023

Lab claims count from the day the card came out, independent runs from the model’s release.

OpenAI Google DeepMind
Own leaderboard Not tested since Sep 2026

Source: Official Voice Arena Brazilian Portuguese leaderboard

Scores over time

All the scores we have, one dot each, so a model tested at several settings appears more than once.

On the benchmark’s own leaderboard Reported by the lab in its model card
800 900 1,000 1,100 1,200 2025 2026 800 900 1,000 1,100 1,200 2025 2026

Sources: Official Voice Arena Brazilian Portuguese leaderboard and labs’ model cards

Labs report it only in system cards

We read the headline results of 522 launch posts from 52 labs, and none of them list this benchmark. Some system cards do, below.

2 system cards report it, from 1 lab

Besides launch posts, we read the system cards, model cards and technical reports labs publish with a release. They report far more, including safety and frontier-risk tests.

DateDocumentScoreAs the document writes itSection
Sep 23, 2026 Gemini 3.8 Flash TTS model card 1104 Voice Arena brazilian portuguese, Elo, Gemini speech generation model page Capabilities
Sep 23, 2026 Gemini 3.8 Flash-Lite TTS model card 1134 Voice Arena brazilian portuguese, Elo, Gemini speech generation model page Capabilities

2 lab claims next to the leaderboard

Each score a lab reported for its own model, beside the same model's best score on the leaderboard. Gaps mostly come from different harnesses, effort levels and task subsets. Every benchmark.

Model Lab says Board says Gap
Gemini 3.8 Flash TTS 1,104 Voice Arena brazilian portuguese, Elo, Gemini speech generation model page 1,097 Leaderboard +7
Gemini 3.8 Flash-Lite TTS 1,134 Voice Arena brazilian portuguese, Elo, Gemini speech generation model page 1,127 Leaderboard +7

More in Audio and video

All 232 in Audio and video
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  • LVBench In use Hours-long video understanding with multiple-choice questions on reasoning, grounding and summarization. Gemini 4 Argon 91.7%
  • MMVU In use 3,000 expert-annotated questions on videos across 27 disciplines. Multiple-choice and open-ended accuracy. Qwen 3.8 Max 82.4%
  • MLVU In use Multi-task long video understanding (minutes to hours) with multiple-choice and generation tasks. Accuracy. Qwen 3.8 Max 90.8%
  • FLEURS In use Models transcribe read speech in 102 languages built from FLoRes-101 sentences. Model cards usually report word error rate, so lower scores are better. Phi-4-multimodal 4.00%
  • VoiceBench In use Spoken instructions with speaker, environment and content variation. Voice assistant responses scored by GPT judge or rules. Qwen3.5-Omni-Plus 93.1%