Audio Transcription Cost Comparison: Gemini 3.1 Flash vs. Grok 4.1 Fast for 60 Minutes Audio

Gemini 3.1 Flash vs Grok 4.1 Fast
Complete Comparison: 16,000 input tokens × 1,000 output tokens
Comparison Mode
🎧 60min Audio ⚡ 10% Cached

Complete comparison of pricing, performance, and capabilities for 2 leading AI models with 60min Audio, 10% Cached.

⚡ Caching Optimized (up to 90% savings)
Comparison Criteria Gemini 3.1 Flash
Google
Grok 4.1 Fast
xAI
Calculation Results (Current Inputs) (60min audio, 10% cached)
Input Tokens 16,000 16,000
Output Tokens 1,000 1,000
Cost Breakdown
Input Cost $0.065600 (rounded ~ $0.07)Best $0.164000 (rounded ~ $0.16)Worst
Output Cost $0.003000Worst $0.002500Best
Unit Cost (Audio/OCR) $0.000000 $0.000000
Service Fees $0.000000 $0.000000
Total Cost $0.062696 (rounded ~ $0.06) Best Value $0.151740 (rounded ~ $0.15) Most Expensive
Processing Time 2 minutes, 57.00 seconds 2 minutes, 57.00 seconds
Tokens per Second 800 800
Time to First Token 100ms 100ms
Cost per 1K tokens $0.000474Best $0.001148Worst
Tokens per Dollar 2,108,587Best Value 871,227Worst Value
Cost per 1 Million Tokens (Informational)
Input Cost / 1M (Base) $0.500000Best $1.250000Worst
Output Cost / 1M (Base) $3.000000Worst $2.500000Best
Input Cost / 1M (Optimized) $0.500000Best
Optimizations: No optimizations applied
$1.250000Worst
Optimizations: No optimizations applied
Output Cost / 1M (Optimized) $3.000000Worst
Optimizations: No optimizations applied
$2.500000Best
Optimizations: No optimizations applied
Capabilities & Advanced Features
Images Support ✓ Supported ✓ Supported
Video Support ✓ Supported ✓ Supported
Audio Support
60
✓ Supported ✓ Supported
OCR Support ✗ Not Supported ✓ Supported
Caching Support
10
✓ Supported ✓ Supported
Batch API Support ✓ Supported ✓ Supported
Tool Usage Support ✓ Supported ✓ Supported
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Select AI Model

Gemini 3.1 Flash
GoogleMax Context: 1,000,000 tokens
$0.5 / $3 per 1M tokens (Tier 1)
State-dependent pricing active. Current tier: Standard
▼
▼
Use Batch API (50% discount)
10%
Provider-specific multipliers applied after all calculations
Enable for cache discounts
Select platform to enforce context limits
Number of requests (max 1M). Summary view auto-enabled >10k.
Will auto-convert to minutes for Voxtral models (9000 tokens = 1 min)
$0.067 per 1,000 pixels

Calculate Token Costs

$0.062696 Total Cost
$0.059040 Input Cost
$0.003000 Output Cost
$0.000000 Unit Cost
$0.000000 Search Cost
$0.000000 Request Fee
$0.000000 Tool Fee
$0.000000 Code Execution
132,200Total Tokens
$0.000474Cost per 1K
2,108,587Tokens per $
🔄 Dynamic Tier Pricing Active: Using Standard pricing (tier1) based on token volume.
📊 Advanced Cost Breakdown

Processing Speed

2m 56s Processing Time
800 Tokens/Second
100ms Time to First Token
748 Effective Speed

Model Comparison

Select a model to see comparisons with competitors.

Model Information

Select a model to see detailed information.

🔄 Advanced Options

⚡ Optimization
Flat fee per session (e.g., $0.03 for Code Interpreter)
Hourly storage fee for cached data
First 50 hours free, $0.05/hour after
🧠 Reasoning & Thinking
Manual thinking tokens (billed at output rate)
🔧 Special Modes
Enable 6.0x Fast Mode multiplier
📚 Research & Citations
Enable $1.00/$4.00 rates + $10.00/1k search
Enable research tier pricing
Fee per source cited
🎤 Realtime Audio & Video
Session length for billing
📊 Multiple Models Detected: This page contains data for 2 models. See the detailed comparison table above, and switch between models using tabs below.

Gemini 3.1 Flash Google 1000000

$0.062696 (rounded ~ $0.06)
Total Cost
🎧 60min Audio ⚡ 10% Cached
👁️
Vision/Images
✓ Available
🎧
Audio Processing
✓ Available
🎥
Video Analysis
✓ Available
🔧
Tool Usage
✓ Available
📄
OCR Support
✗ Not Available
📊
Batch API
✓ Available
⚡
Caching
✓ Available
90% savings

💰 Total Cost Calculation (from Plugin)

Base Cost (No Optimizations) $0.068600 (rounded ~ $0.07) Input: $0.065600 (rounded ~ $0.07)
Output: $0.003000
Optimized Cost $0.062696 (rounded ~ $0.06) Input: $0.065600 (rounded ~ $0.07)
Output: $0.003000
Unit: $0.000000
Fees: $0.000000
Total Savings $0.005904 (rounded ~ $0.01) 8.6% discount

Advanced Cost Breakdown (from Plugin)

🖼️ Multimodal Input
$0.000000
115,200 tokens
📊 Dynamic Tier
Standard
tier1 pricing based on 0 tokens

Multimodal Input Details

🎧 Audio
Duration: 60 minutes
Cost: $0.000000

Detailed Cost Analysis (from Plugin)

For 16,000 input tokens and 1,000 output tokens:

  • Input Cost: $0.065600 (rounded ~ $0.07)
  • Output Cost: $0.003000
  • Total Cost: $0.062696 (rounded ~ $0.06)
  • Cost per 1K tokens: $0.000474
  • Tokens per dollar: 2,108,587 tokens
  • Context Window: 1000000 tokens

Speed & Performance Analysis

With a processing speed of 800 tokens per second and 100ms time to first token:

  • Processing Time: 2 minutes, 57.00 seconds
  • Latency: 100 milliseconds to first token
  • Base Throughput: 800 tokens/second
  • Effective Throughput: 748 tokens/second (temperature-adjusted)

Best Use Cases

Compares two cost-effectiveaudio-capable models for transcription and summarizationhelping founders choose between Google's multimodal offering and xAI's rapidly developing solution based on price and performance for short-to-medium audio clips.

Want this applied to YOUR actual stack?

This calculator shows the math for Gemini 3.1 Flash. Your decision needs more — current infrastructure, compliance requirements, actual workload patterns, volume tiers — that change which model is right for you.

Get a $39 personalized AI Architecture Audit. PDF tailored to your stack, delivered in under 60 seconds. 7-day no-questions-asked refund.

Get my instant AI audit — $39 →

Grok 4.1 Fast xAI 2000000

$0.151740 (rounded ~ $0.15)
Total Cost
🎧 60min Audio ⚡ 10% Cached
👁️
Vision/Images
✓ Available
🎧
Audio Processing
✓ Available
🎥
Video Analysis
✓ Available
🔧
Tool Usage
✓ Available
📄
OCR Support
✓ Available
📊
Batch API
✓ Available
⚡
Caching
✓ Available
90% savings

💰 Total Cost Calculation (from Plugin)

Base Cost (No Optimizations) $0.166500 (rounded ~ $0.17) Input: $0.164000 (rounded ~ $0.16)
Output: $0.002500
Optimized Cost $0.151740 (rounded ~ $0.15) Input: $0.164000 (rounded ~ $0.16)
Output: $0.002500
Unit: $0.000000
Fees: $0.000000
Total Savings $0.014760 (rounded ~ $0.01) 8.9% discount

Advanced Cost Breakdown (from Plugin)

🖼️ Multimodal Input
$0.000000
115,200 tokens

Multimodal Input Details

🎧 Audio
Duration: 60 minutes
Cost: $0.000000

Detailed Cost Analysis (from Plugin)

For 16,000 input tokens and 1,000 output tokens:

  • Input Cost: $0.164000 (rounded ~ $0.16)
  • Output Cost: $0.002500
  • Total Cost: $0.151740 (rounded ~ $0.15)
  • Cost per 1K tokens: $0.001148
  • Tokens per dollar: 871,227 tokens
  • Context Window: 2000000 tokens

Speed & Performance Analysis

With a processing speed of 800 tokens per second and 100ms time to first token:

  • Processing Time: 2 minutes, 57.00 seconds
  • Latency: 100 milliseconds to first token
  • Base Throughput: 800 tokens/second
  • Effective Throughput: 748 tokens/second (temperature-adjusted)

Best Use Cases

Compares two cost-effectiveaudio-capable models for transcription and summarizationhelping founders choose between Google's multimodal offering and xAI's rapidly developing solution based on price and performance for short-to-medium audio clips.

Want this applied to YOUR actual stack?

This calculator shows the math for Grok 4.1 Fast. Your decision needs more — current infrastructure, compliance requirements, actual workload patterns, volume tiers — that change which model is right for you.

Get a $39 personalized AI Architecture Audit. PDF tailored to your stack, delivered in under 60 seconds. 7-day no-questions-asked refund.

Get my instant AI audit — $39 →

✨ Market Recommendations AI Model Registry

← Back to Gemini 3.1 Flash
📋 Active Input Parameters
Input Tokens: 16,000
Output Tokens: 1,000
Cached Tokens: 10%
Audio: 60 minutes
Rank AI Model & Provider Total Cost vs Gemini 3.1 Flash vs Grok 4.1 Fast
🏆 Gemini 3.1 Flash Lite
Google
 $0.031348 (rounded ~ $0.03) Best Value ↓ 50% cheaper ↓ 79.3% cheaper
🥈 Gemini 2.5 Flash
Google
 $0.038318 (rounded ~ $0.04) ↓ 38.9% cheaper ↓ 74.7% cheaper
🥉 Grok 4.3
xAI
 $0.151740 (rounded ~ $0.15) ↑ 142% more Same price
#4 Gemini 2.5 Pro
Google
 $0.159240 ↑ 154% more ↑ 4.9% more
#5 Gemini 3.5 Flash
Google
 $0.188088 (rounded ~ $0.19) ↑ 200% more ↑ 24% more
#6 Gemini 3.5 Flash
Google
 $0.188088 (rounded ~ $0.19) ↑ 200% more ↑ 24% more
🏆

Gemini 3.1 Flash Lite
Google

$0.031348 (rounded ~ $0.03)
vs Gemini 3.1 Flash: ↓ 50%
vs Grok 4.1 Fast: ↓ 79.3%
🥈

Gemini 2.5 Flash
Google

$0.038318 (rounded ~ $0.04)
vs Gemini 3.1 Flash: ↓ 38.9%
vs Grok 4.1 Fast: ↓ 74.7%
🥉

Grok 4.3
xAI

$0.151740 (rounded ~ $0.15)
vs Gemini 3.1 Flash: ↑ 142%
vs Grok 4.1 Fast: Same
#4

Gemini 2.5 Pro
Google

$0.159240
vs Gemini 3.1 Flash: ↑ 154%
vs Grok 4.1 Fast: ↑ 4.9%
#5

Gemini 3.5 Flash
Google

$0.188088 (rounded ~ $0.19)
vs Gemini 3.1 Flash: ↑ 200%
vs Grok 4.1 Fast: ↑ 24%
#6

Gemini 3.5 Flash
Google

$0.188088 (rounded ~ $0.19)
vs Gemini 3.1 Flash: ↑ 200%
vs Grok 4.1 Fast: ↑ 24%
✨ How recommendations work (v8.6.0): We scan all active models in the registry and only include those that support ALL your current inputs. For token-based models, we check if they can handle your token counts. For special pricing models (OCR, video, audio), we verify they have the correct pricing structure. Features marked requested were in your inputs but not supported by that model. Now using official provider pricing without reseller markups.

Comparing AI Models for Meeting Notes: Gemini 3.1 Flash vs. Grok 4.1 Fast

For solo SaaS founders looking to implement real-time meeting note-taking features, understanding the cost and capability differences between AI models is key. This comparison evaluates two prominent, audio-capable models: Google’s Gemini 3.1 Flash and xAI’s Grok 4.1 Fast, focusing on their suitability and cost for transcribing and summarizing 60-minute meetings.

Model Capabilities and Pricing

Both Gemini 3.1 Flash and Grok 4.1 Fast are equipped with audio processing capabilities, making them viable for transcription tasks.

Gemini 3.1 Flash from Google offers a large 1,000,000 token context window and supports audio input. Its pricing is set at $0.50 per 1 million input tokens and $3.00 per 1 million output tokens.

Grok 4.1 Fast from xAI provides an even larger 2,000,000 token context window and also supports audio. Its pricing is more aggressive, at $0.20 per 1 million input tokens and $0.50 per 1 million output tokens.

Cost Analysis for 60-Minute Meetings

Let’s estimate the cost for processing a 60-minute meeting. We project approximately 16,000 tokens for the transcription (input) and 1,000 tokens for the summary (output). Using the higher end of the output token pricing for a conservative estimate:

  • Gemini 3.1 Flash Cost: ((16,000 / 1,000,000) * $0.50) + ((1,000 / 1,000,000) * $3.00) ≈ $0.008 + $0.003 = $0.011 per meeting. (Note: Input token cost for transcription is dominant).
  • Grok 4.1 Fast Cost: ((16,000 / 1,000,000) * $0.20) + ((1,000 / 1,000,000) * $0.50) ≈ $0.0032 + $0.0005 = $0.0037 per meeting.

Based on these estimates, Grok 4.1 Fast offers a significantly lower cost per meeting for this audio workload. While Gemini 3.1 Flash provides multimodal capabilities beyond audio, Grok 4.1 Fast presents a more budget-friendly option specifically for transcription and summarization tasks.

Key Comparison Points:

  • Pricing: Grok 4.1 Fast is notably cheaper for both input and output tokens.
  • Context Window: Both offer large context windows, with Grok 4.1 Fast having an edge.
  • Capabilities: Gemini 3.1 Flash is broadly multimodal; Grok 4.1 Fast includes OCR in its audio capabilities.

When to Choose Which:

If your primary need is cost-effective audio transcription and summarization, Grok 4.1 Fast appears to be the more economical choice. If your application requires broader multimodal understanding (vision, video) alongside audio, Gemini 3.1 Flash might be considered, though at a higher cost for audio processing alone.

Frequently Asked Questions

How accurate are these AI model cost calculations?
Our calculations are based on official pricing from each provider (Google, OpenAI, Anthropic, Meta, xAI, Perplexity, DeepSeek, Mistral) and are updated regularly. We account for all factors including multimodal inputs, caching discounts, batch API pricing, tool usage multipliers, OCR processing, audio minutes, silence fees, and research mode pricing. Note: Reseller markups and dedicated instance multipliers have been removed to reflect official provider pricing.
How does audio billing work?
Audio models are billed by token, not by minute. Voxtral Small 24B costs $0.10 per 1M input tokens and $0.30 per 1M output tokens, matching Mistral Small 3. GPT Realtime Mini uses standard token billing. There are no silence keep-alive surcharges or per-minute duration fees on either provider.
How does prompt caching work?
Caching discounts vary by provider: Google and OpenAI offer 90% discounts on cached input tokens. Anthropic uses write (1.25x) and read (0.10x) multipliers. Savings are applied to the token portion only, not unit-based fees.
How do Market Recommendations work (v8.6.0)?
Our recommendation engine scans the entire model registry and only includes models that support ALL your current input parameters (tokens, images, video, audio, OCR, tools, batch API, etc.). It calculates exact costs with your settings and sorts by price, showing you the best value options that can handle your complete workflow. Special pricing models (OCR, video, audio, image generation) are properly handled and only appear when their specific input types are requested. v8.6.0 removes reseller markups (20% buffer) and dedicated instance multipliers to reflect official provider pricing.
What is the YemHub AI Calculator Tool?
The YemHub AI Calculator is the most comprehensive tool for estimating costs and comparing performance metrics across 50+ AI models. It calculates token-based pricing, analyzes multimodal processing, accounts for state-dependent pricing (context cliffs, tiered tunnels), provides optimization recommendations, and now offers intelligent market matching to find the best alternatives for your specific needs.