Compare

Gemini 3.1 Flash Lite vs Gemini 3.1 Flash TTS

Pricing per million tokens, context window, capabilities — pulled from each provider's public docs. All 2 are available via the same AIgateway OpenAI-compatible endpoint; flip the model string to switch.

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Gemini 3.1 Flash Lite
google/gemini-3.1-flash-lite
Gemini 3.1 Flash TTS
google/gemini-3.1-flash-tts
Provider
Google
Google
Family
Gemini 3
Gemini 3
Modality
text
audio-tts
Context window
1,000,000 tok
Max output
8,192 tok
Released
2026-05-22
2026-05-22
License
Proprietary
Proprietary
Input price
$0.250 /1M
Output price
$1.50 /1M
Cache read
$0.025 /1M
Per 1K chars
$0.0000 /1K ch
Tools
yes
yes
Streaming
yes
Vision
yes
JSON mode
yes
yes
Reasoning
Prompt caching
yes
Batch API
Try it
Open in playground →
View model →
Gemini 3.1 Flash Lite
google/gemini-3.1-flash-lite
Full spec →

Google's lightest and most cost-efficient Gemini model for high-throughput tasks.

Strengths
  • Cheapest Gemini
  • Multi-modal native
  • Very fast
Use cases
Bulk ingestionClassificationThrowaway drafts
Gemini 3.1 Flash TTS
google/gemini-3.1-flash-tts
Full spec →

Newest audio model from Google introduces granular audio tags that give you precise control to direct AI speech for expressive audio generation.

Strengths
  • Natural speech synthesis
Use cases
VoiceoversIVRAudiobooks

Compare with another

Gemini 3.1 Flash Lite vs GPT-5.4 Nano
google/gemini-3.1-flash-lite · openai/gpt-5.4-nano
Gemini 3 Flash vs Gemini 3.1 Flash Lite
google/gemini-3-flash · google/gemini-3.1-flash-lite
Gemini 3 Flash vs Gemini 3.1 Flash TTS
google/gemini-3-flash · google/gemini-3.1-flash-tts
Gemini 3.1 Pro vs Gemini 3.1 Flash Lite
google/gemini-3.1-pro · google/gemini-3.1-flash-lite
Gemini 3.1 Pro vs Gemini 3.1 Flash TTS
google/gemini-3.1-pro · google/gemini-3.1-flash-tts
SWITCH BETWEEN THEM

One key, all 2, one line different.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.aigateway.sh/v1",
    api_key="sk-aig-...",
)

# Gemini 3.1 Flash Lite
client.chat.completions.create(
    model="google/gemini-3.1-flash-lite",
    messages=[{"role":"user","content":"hello"}],
)

# Gemini 3.1 Flash TTS
client.chat.completions.create(
    model="google/gemini-3.1-flash-tts",
    messages=[{"role":"user","content":"hello"}],
)
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