GoogleVerified Active: September 18, 2026
Gemini 3.8 FlashAPI Pricing & Specifications
Google's latest high-performance multimodal Flash model with 1M context window and introductory pricing.
📊 Core Specifications & Pricing Rates
Standard Input
$0.75 / 1M tokens
Standard Output
$3.75 / 1M tokens
Cached Input
$0.0750 / 1M tokens
Context Window
1M (1,048,576 tokens)
Max Output Tokens
8,192 tokens
Supported Capabilities:✓ Vision✓ Function Calling / Tools✓ JSON Mode✓ Deep Reasoning
📦 Asynchronous Batch API Supported: Official provider documentation offers a 50% discount on non-streaming 24h batch requests.
Live Workload Cost Estimator: Gemini 3.8 Flash
Adjust token volumes to simulate your exact monthly API bill.
Estimated 60% repeated context
Estimated Total Monthly Cost
Compare All Models in Calculator→$50.44/ month
$0.00202 per API request(Saves $15.19/mo with caching)
💡 Estimated Monthly Workload Scenarios
Standard AI Chatbot
$76.88/mo50,000 monthly conversations (800 input tokens, 250 output tokens)
50,000 requests • 800 in / 250 out
Enterprise Document RAG
$185.00/mo100,000 document queries with prompt caching enabled (4,000 input, 400 output)
100,000 requests • 4000 in / 400 out
⚖️ Head-to-Head Competitor Comparisons
Gemini 3.8 Flash vs. Claude Sonnet 5
Gemini 3.8 Flash is 4x cheaper on input ($0.75 vs $3.00) and 4x cheaper on output ($3.75 vs $15.00) for high-throughput pipelines.
4x cheaper than Sonnet 5View Claude Sonnet 5 →
Gemini 3.8 Flash vs. GPT-5.5 Mini
Gemini 3.8 Flash provides 8x larger context window (1M vs 128K) with native audio support.
5x higher input cost than 5.5 MiniView GPT-5.5 Mini →
📜 Historical Price Changes & Updates
2026-09-02
Gemini 3.8 Flash shipped with introductory pricing ($0.75 in / $3.75 out per 1M tokens) locked through Dec 31, 2026.
🔗 Verified Primary Sources
All pricing, token limits, and capabilities are cross-checked against official provider documentation and live API endpoints.