Blog/AI API Pricing

Together.ai Finetuning Too Expensive? Use NexaAPI Instead

The real cost of DPO finetuning — and why most developers are better off with direct inference.

March 2026 · 5 min read

Together.ai's finetuning platform is impressive. But after running the numbers, many developers are realizing the same thing: finetuning is expensive, and for most use cases, you don't need it.

Here's the honest cost breakdown — and a cheaper path forward.

The Real Cost of Together.ai Finetuning

Dataset preparation
10–100+ hours of labeling
Training runs
$50–$500+ per run
Iteration cycles
3–10 runs typical
Total realistic cost
$200–$2,000+

Source: Together.ai DPO finetuning documentation

Pricing Comparison: Finetuning vs Direct Inference

TaskTogether.ai FinetuningNexaAPI Direct
SetupDays + $200–$2,0005 minutes + $0
Image generationInference after training$0.003–$0.05/image
Flux 2 Pro qualityRequires training$0.05/image (instant)
Flux 2 Turbo (fast)Requires training$0.01/image (instant)
TTS (ElevenLabs)Not availableAvailable via NexaAPI
Free tierNoYes (via RapidAPI)

The Math is Clear

For a startup spending $500 on Together.ai finetuning, that same budget with NexaAPI buys:

  • ✓10,000 high-quality Flux 2 Pro images ($0.05/image)
  • ✓500,000 fast Flux 2 Turbo images ($0.001/image)
  • ✓Months of LLM inference for your product

Get Started in 60 Seconds

Python

# pip install nexaapi
from nexaapi import NexaAPI

client = NexaAPI(api_key='YOUR_API_KEY')

# High quality — no training required
response = client.image.generate(
    model='flux-2-pro',
    prompt='Professional product photography, smartwatch on marble',
    width=1024,
    height=1024
)
print('Pro image:', response.image_url)

# Budget-friendly for high volume
fast = client.image.generate(
    model='flux-2-turbo',    # $0.01/image
    prompt='Quick concept sketch for UI mockup',
    width=512,
    height=512
)
print('Fast image:', fast.image_url)

pip install nexaapi

JavaScript

// npm install nexaapi
import NexaAPI from 'nexaapi';

const client = new NexaAPI({ apiKey: 'YOUR_API_KEY' });

async function runWithoutFinetuning() {
  // High-quality image generation
  const proImage = await client.image.generate({
    model: 'flux-2-pro',
    prompt: 'Professional product photography, smartwatch on marble',
    width: 1024,
    height: 1024
  });
  console.log('Pro image:', proImage.imageUrl);

  // Budget option
  const fastImage = await client.image.generate({
    model: 'flux-2-flash',
    prompt: 'Quick concept art for mobile app icon',
    width: 512,
    height: 512
  });
  console.log('Fast image:', fastImage.imageUrl);
}

runWithoutFinetuning().catch(console.error);

npm install nexaapi

Use finetuning when you've exhausted prompt engineering. Not before.

50+ models. Free tier. Start in 5 minutes.

Get Free API Key → nexa-api.comTry on RapidAPI