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Gemini 2.5 Flash TTS

google·google/gemini-2.5-flash-tts·GA·Closed·gemini-flash series·Speech / Audio
Speech generation model for controllable voice, narration, and audio delivery

Specs & pricing

Input / output per 1M tokens
Official price·Vertex
$0.50 / $10.00
Blended $2.88 · Cache read —
Lowest paid·VertexCloud
$0.50 / $10.00
Blended $2.88
Context
32,768
Output limit
16,384
Knowledge cutoff
2025-01
Released / updated
2025-09-30 / 2025-12-10
Capabilities
ReasoningTool use? Structured output✓ TemperatureAttachments
Modalities
Text

Available at 1 providers1 with public prices

ProviderTierInputOutputCache readCache writeContextOutput limitStatus
VertexOfficialCloud$0.50$10.00——32,76816,384

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Your usage cost

1Vertex · Official$600.00
The cheapest paid channel is official.

Price historyone sample accumulated per data sync

Input listOutput listMin blended
$10.00$02026-08-052026-08-132026-08-05 · Input list $0.502026-08-06 · Input list $0.502026-08-07 · Input list $0.502026-08-08 · Input list $0.502026-08-09 · Input list $0.502026-08-10 · Input list $0.502026-08-11 · Input list $0.502026-08-12 · Input list $0.502026-08-13 · Input list $0.502026-08-05 · Output list $10.002026-08-06 · Output list $10.002026-08-07 · Output list $10.002026-08-08 · Output list $10.002026-08-09 · Output list $10.002026-08-10 · Output list $10.002026-08-11 · Output list $10.002026-08-12 · Output list $10.002026-08-13 · Output list $10.002026-08-05 · Min blended $2.882026-08-06 · Min blended $2.882026-08-07 · Min blended $2.882026-08-08 · Min blended $2.882026-08-09 · Min blended $2.882026-08-10 · Min blended $2.882026-08-11 · Min blended $2.882026-08-12 · Min blended $2.882026-08-13 · Min blended $2.88

Artificial Analysis arenas1 arenas

Text to speech1058±12#56 of 93

Elo from human preference matchups run by Artificial Analysis. Each arena is anchored separately, so Elo is only comparable within one arena, against the other models on that board, and the 95% confidence interval (shown as ±) indicates how much of a gap is noise. Rank is over the whole arena, including models not listed here.

Related models

Gemini 3.8 Flashsame series$0.75 / $3.75Gemini 3.8 Flash (EU)same series$0.83 / $4.13Gemini 3.8 Flash (Vertex AI, US)same series$0.75 / $3.75Qwen3 235B-A22B Instruct 2507cheaper alternative$1.03 / $3.08Qwen3-Coder 30B-A3B Instructcheaper alternative$0.45 / $2.25Qwen3 Coder Nextcheaper alternative$0.58 / $2.32Qwen3 VL 235B A22B Instructcheaper alternative$0.53 / $2.66
Data partly from models.dev (MIT) · Vertex official docs ↗