Gemini 2.5 Flash preview TTS

Google AI audio speech

Gemini 2.5 Flash preview TTS is a Google AI text-to-speech model.Input is priced at $0.300/M tokens and output at $2.50/M tokens. Route Gemini 2.5 Flash preview TTS via Future AGI's Agent Command Center for unified observability, caching, and 15 routing strategies including cost-optimized fallback.

Pricing source: litellm Last verified: May 12, 2026 View source ↗
Cost calculator

Estimate Gemini 2.5 Flash preview TTS spend

Pick a workload, fine-tune the sliders, and see the monthly bill.

~3K in / ~400 out · 5K req/day
3,000
0200,000
400
016,000
5,000
01,000,000
Per request
$0.001900
in $0.000900 · out $0.001000
Per day
$9.50
5,000 requests
Per month
$289
152,188 requests

Estimate uses $0.3000/M input · $2.50/M output. Provider pricing changes. Production costs vary with retries, streaming overhead, and tool-call rounds.
Want this for free? Cache + route via Agent Command Center — first 100K requests and 100K cache hits free every month.

Pricing

Per-token rates, expressed in USD per 1M tokens. Verified May 12, 2026.

Input $0.300/M
Output $2.50/M

Limits

Context window
Max input
Max output
Modalities
audio, text

Capabilities

  • Function calling — not advertised
  • Parallel tool calls — not advertised
  • Vision input — not advertised
  • Audio input — not advertised
  • Audio output — not advertised
  • PDF input — not advertised
  • Streaming ✓ supported
  • Structured output — not advertised
  • Prompt caching — not advertised
  • Reasoning — not advertised

Benchmarks pending

We haven't logged public benchmark scores for Gemini 2.5 Flash preview TTS yet. Have one to contribute? Submit a source — citations help us prioritise.

Try it

Call Gemini 2.5 Flash preview TTS via Agent Command Center

One OpenAI-compatible endpoint. Routing, fallback, semantic caching, guardrails, and cost tracking come along for the ride. First 100K requests + 100K cache hits free every month.

SDK
Native Future AGI client (agentcc / @agentcc/client). Per-call metadata — provider, cost, latency, cache hit, request id — is returned on x-agentcc-* response headers, so any HTTP client can read it.
# Gemini 2.5 Flash preview TTS via the Agent Command Center Python SDK
# pip install agentcc
import os
from agentcc import AgentCC

client = AgentCC(
    api_key=os.environ["AGENTCC_API_KEY"],   # from app.futureagi.com → Settings → API Keys
    base_url="https://gateway.futureagi.com/v1",
)

resp = client.chat.completions.create(
    model="google/gemini-2-5-flash-preview-tts",
    messages=[{"role": "user", "content": "Hello, Gemini 2.5 Flash preview TTS!"}],
)

print(resp.choices[0].message.content)
print(f"Tokens: {resp.usage.total_tokens}")

# Per-call gateway metadata is returned on x-agentcc-* response headers.
# When you need it programmatically, use .with_raw_response to get them:
raw = client.chat.completions.with_raw_response.create(
    model="google/gemini-2-5-flash-preview-tts",
    messages=[{"role": "user", "content": "Same call, but I want the headers."}],
)
print("Provider:", raw.headers.get("x-agentcc-provider"))
print("Latency:", raw.headers.get("x-agentcc-latency-ms"), "ms")
print("Cost:   ", raw.headers.get("x-agentcc-cost"), "USD")
print("Cache:  ", raw.headers.get("x-agentcc-cache"))
Set AGENTCC_API_KEY with a key fromapp.futureagi.com.Gateway docs ↗

FAQ

How much does Gemini 2.5 Flash preview TTS cost?

Input is priced at $0.300 per 1M tokens and output at $2.50 per 1M tokens (Google AI, last verified May 12, 2026).

What is the context window of Gemini 2.5 Flash preview TTS?

Context window for Gemini 2.5 Flash preview TTS is not currently public.

Does Gemini 2.5 Flash preview TTS support function calling?

Gemini 2.5 Flash preview TTS does not currently advertise function-calling support. For agentic workloads, prefer a tool-calling-capable model and route via Agent Command Center for fallback.

Is Gemini 2.5 Flash preview TTS good for production?

Gemini 2.5 Flash preview TTS is best evaluated against your own production traces. Pipe traffic through Agent Command Center to compare it head-to-head against alternatives in shadow mode.

How can I route to Gemini 2.5 Flash preview TTS with fallback?

Use Agent Command Center: a single OpenAI-compatible endpoint that supports cost-optimized routing, latency-aware retries, model fallback, and shadow traffic. Configure once, swap models without app changes.

Useful links for Gemini 2.5 Flash preview TTS

Official sources, independent benchmarks, and pricing aggregators — no random search-engine guesses.