oxyy.ai
HomeModelsProvidersPricingBlogDocs
Sign inGet API key
  1. Home/
  2. Providers/
  3. Google/
  4. Gemini 3.1 Flash TTS

Google: Gemini 3.1 Flash TTS

google/gemini-3.1-flash-tts-preview
Compare Playground Get API key
Powerful, low-latency speech generation with natural outputs, steerable prompts and expressive inline audio tags for precise narration control across 70+ languages.
ModalitiesTextAudio
In / out price$0.400 / — per 1M
Context33K
ReleasedApr 15, 2026
ProvidersPricingPerformanceAvailabilityAppsActivityFAQExplore

Providers

Where this model runs, and what each route costs. Requests are sent to a healthy provider automatically; if one errors, the gateway retries against another serving the same model.

ProviderInput /MOutput /MCache read /MLatencyThroughput
Google$0.400——6.55s—

Capabilities (8)

StreamingAudio GenerationVoice InstructionsAudio TagsMulti SpeakerLanguage DetectionSynthid WatermarkBatch

Supported parameters (5)

speech_config.voice_namespeech_config.multi_speaker_voice_configspeech_config.language_coderesponse_modalitiessystem_instruction

Any other parameter you send is ignored rather than rejected.

Pricing

What this model costs to run, next to the rate it is posted at. Caching and discounts mean the price actually paid is often below the listed one.

Effective input price
$0.400
/M tokens · listed $1.00
Effective output price
—
/M tokens
RateListedChargedUnit
Input$1.00$0.400per 1M tokens
UTC

Performance

Throughput is how fast the model writes (tokens per second — higher is better). Latency is total round-trip time (lower is better). TTFT is time-to-first-token — how long before you see anything appear (lower is better). Throughput and TTFT are measured on streaming requests, which are the only ones with a first-token moment to time.

Throughput
—tok/s
P50, streaming requests
Latency
6.55s
P50, end to end
UTC

Throughput

Not enough traffic yet
P99—
P95—
P50—

Latency

P5013.7s
P7522.6s
P9536.9s
P9963.9s

Time to first token

Not enough traffic yet
P50—
P95—

Cache hit rate

0.00%
Share of input tokens served from the prompt cache over the window.

Availability

The share of requests to this model that completed successfully. When an upstream provider errors, the gateway retries against another provider serving the same model, so a single provider incident does not necessarily show up here.

Success rate (30d)
84.30%
over 3,949 requests
Days with traffic
23
of the last 30

Days are UTC days. Days with no requests are omitted rather than drawn at 100% — no traffic is not evidence of availability.

Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for.

No apps have identified themselves for this model yet. Clients can opt in by sending an X-Title header with their request.

Activity

Token volume and request traffic to this model over time. Daily totals, UTC.

Prompt12.7K
Completion12.8K

Prompt tokens measure input size. Reasoning tokens show internal thinking before a response. Completion tokens reflect total output length. Reasoning is not priced separately for this model, so it is not itemised here.

Frequently asked questions

What is Gemini 3.1 Flash TTS?
Powerful, low-latency speech generation with natural outputs, steerable prompts and expressive inline audio tags for precise narration control across 70+ languages.
How much does Gemini 3.1 Flash TTS cost?
Gemini 3.1 Flash TTS costs $1.00 per million input tokens and — per million output tokens. You pay per request, with no subscription.
What is the context length of Gemini 3.1 Flash TTS?
Gemini 3.1 Flash TTS has a context window of 32,768 tokens, and can return up to 16,384 tokens in one response.
Does Gemini 3.1 Flash TTS support tool calling and structured outputs?
Neither tool calling nor structured outputs are listed among this model's capabilities. Any unsupported parameter you send is ignored rather than rejected.
What inputs and outputs does Gemini 3.1 Flash TTS support?
Gemini 3.1 Flash TTS accepts text as input and returns audio.
What other models does Google have?
Google also offers Gemini 2.5 Flash, Gemini 2.5 Flash-Lite, Gemini 2.5 Flash TTS, Gemini 2.5 Pro through Oxyy.
When was Gemini 3.1 Flash TTS released?
Gemini 3.1 Flash TTS was released on Apr 15, 2026.

Explore more models

Browse the full catalog ModelsCompare pricing Pricing

More models from Google

Gemini 2.5 FlashGoogle's first hybrid reasoning model with configurable thinking budgets; best price-performance for low-latency, high-…text · 1.05M context · $0.300 / $2.50Gemini 2.5 Flash-LiteSmallest and most cost-effective multimodal model in the 2.5 family, built for at-scale usage.text · 1.05M context · $0.100 / $0.400Gemini 2.5 Flash TTSFast and controllable text-to-speech for low-latency, cost-efficient applications and real-time assistants, with fine c…audio tts · 8K context · $0.500 / —Gemini 2.5 ProMost advanced model of the 2.5 family, with deep reasoning and coding capability for complex tasks.text · 1.05M context · $1.25 / $10.00Gemini 2.5 Pro TTSHigh-fidelity speech synthesis optimized for quality in structured workflows such as podcasts and audiobooks, with more…audio tts · 8K context · $1.00 / —Nano Banana 2High-efficiency production-scale image generation and editing, balancing speed with 4K generation, world knowledge and…image generation · — context · $0.500 / $3.00
oxyy.ai

One endpoint for every major model. The OpenAI, Anthropic and Gemini SDKs work unchanged.

Product

  • Models
  • Providers
  • Pricing
  • Status
  • Startup program

Company

  • About
  • Blog
  • Contact
  • Terms of Service
  • Privacy Policy
  • Refund Policy
  • Cookie Policy

Developer

  • Documentation
  • Quickstart
  • SDKs
  • Model catalog
  • AI providers

Connect

  • Telegram
  • Discord
  • WhatsApp
© 2026 Oxyy.ai. All rights reserved.StatusAbout