FineTune Lab
No signup required • 2-minute demo

See Your LLM in Action.
Right Now.

Plug in your model. Run 10 test prompts. Get live traces, cost analysis, and quality scores.
No signup. Takes 2 minutes.

Supported Providers:

Together.ai
Fireworks.ai
OpenRouter
Groq
vLLM
Ollama
Custom endpoints

Or see why teams are ditching their duct-taped LLM stacks

See Every Request.
In Real-Time.

This is what you see for every single LLM call. No more guessing. No more debugging blind.

LLM Call - Chat Completion

llm_call
Streaming
Cache Hit
Fast TTFT
trace_id: a1b2c3d4
Timeline
TTFT
Token Generation
1,247ms
TTFT
187ms
Time to First Token
Tokens
2,847
In: 512 • Out: 2,335
Cost
$0.0042
Per Request (saved $0.0018)
Speed
2,204
Tokens/Second
Performance Breakdown
Queue Time
23ms
Inference Time
1,187ms
Network Time
37ms
Cache Hit Tokens
1,024
Token Flow
Input512
1,024 Cache Hit
Output2,335
|
Total2,847
Quality Score
4.0/5.0
User rated: "Helpful and accurate response"
Model:gpt-4o-mini
Provider:OpenAI
Region:us-east-1
Completed
Time to First Token (TTFT)
How fast your model starts responding. Critical for user experience.
Performance Breakdown
Queue time, inference, and network tracked separately. Find real bottlenecks.
Cache Optimization
Automatic prompt caching tracked. This request saved 43% on costs.
Quality & User Feedback
Collect ratings, judgments, and automated quality scores on every request.

Every trace captures 40+ metrics including TTFT, token counts, costs, errors, retries, and quality scores.All automatically. All in real-time. All without changing your code.

Validate Your Infrastructure
in Minutes

Stop guessing how your models behave. Connect your endpoint to our diagnostic environment to visualize performance, trace logic, and stress-test your prompts in a production-simulated sandbox.

01

Secure Integration

Point-and-Click Connectivity

Simply provide your Model ID and API Endpoint (OpenAI, Anthropic, or Custom). We act as a lightweight observability layer, securely proxying requests to your model without storing sensitive keys.

💡 Supports REST API, OpenAI-compatible schemas, and custom Hugging Face inference endpoints.

02

Live Execution & Telemetry

Real-Time Performance Profiling

Interact with your model through our specialized interface. As you chat, FineTuneLab captures high-fidelity telemetry in real-time, including time-to-first-token (TTFT), total latency, and precise token consumption.

💡 Monitor Stream-Side Events (SSE) and resource utilization as they happen, not after the fact.

03

Deep Trace Analysis

Peek Inside the Black Box

Every interaction generates a "Trace Map." View the raw JSON, see how the system prompt was injected, and inspect the reasoning chain. Identify exactly where a response went off the rails or why a specific tool call failed.

💡 Audit-ready logs with step-by-step breakdown of the completion lifecycle.

Why Bring Your Own Model?

Generic benchmarks don't tell you how a model will handle your specific edge cases.

By testing your production-ready models within FineTuneLab, you get an immediate preview of our 46 real-time visualizations using your actual data.

It's a zero-risk way to see if your model is ready for the "AI Workflow Crisis."

46
Real-time Visualizations
0
Risk to Your Data

See how traces work with your model

No credit card required. Connect via API Key or OIDC.

The Tool Sprawl Crisis

Building LLMs Today Means
Juggling 8+ Tools

Your team is duct-taping together MLflow, W&B, custom scripts, and Slack threads. There has to be a better way.

MLflow
W&B
Custom Scripts
Jupyter
CloudWatch
Slack (for versioning!)
Datadog
Postman
???
Your Model (Somewhere)
???
Production ???

For Developers

  • ✗Context switching kills flow
  • ✗Debugging across 5+ platforms
  • ✗Custom glue code everywhere

For Users/QA

  • ✗Can't test models easily
  • ✗Need developer to run tests
  • ✗No visibility into quality

For Teams

  • ✗Tribal knowledge required
  • ✗Unclear what's in prod
  • ✗Slow iteration cycles

There's a better way ↓

The Solution

What If It Was All
in One Place?

One platform for the entire lifecycle. No migrations. No integrations. Just works.

Production-Like Testing Playground

Test your model like your users will use it. No developer tools. Just conversation.

Live Traces

See every call, every token, every decision

Instant Cost Analysis

Know what each conversation costs. Before deploying.

Quality Scoring

LLM-as-judge built in. No setup.

Training & Fine-Tuning

Upload data. Click train. Monitor. Deploy.

Automatic Versioning & Monitoring

Everything tracked. Nothing lost in Slack.

Where it should have been from the start.

Postman is for APIs.
Your Users Use Chat.

Stop testing like a developer. Start testing like your users.

How Devs Test Today

  • Postman with JSON payloads
  • curl commands in terminal
  • Custom test scripts
  • Jupyter notebooks

Result:

You test like a developer. Your users experience something different. Quality issues slip through.

How You Should Test

  • Dedicated chat playground
  • Multi-turn conversations
  • Upload files, send images
  • Test edge cases interactively

Result:

You test exactly how users will use it. Catch issues before deployment. Ship with confidence.

Test production scenarios, not API endpoints.

Quick Health Check

See Your Model's Blind Spots
in 2 Minutes

Four simple steps. Real insights. No commitment.

1

Connect Your Model

15 seconds

├─Select Provider: [Together.ai ▼]
├─Endpoint: https://api.together.xyz/...
├─API Key: ••••••••••••

Works with: Together, Fireworks, OpenRouter, Groq, vLLM, Ollama, or any OpenAI-compatible endpoint

2

Run the Test Suite

30 seconds

├─Edge cases
├─Ambiguous queries
├─Multi-turn conversations
├─Common failure modes

Or write your own.

3

Watch Live Traces

1 minute

├─Token usage per message
├─Cost per conversation
├─Latency breakdown
├─Quality scoring
├─Error detection
4

Get Your Report

30 seconds

├─Total cost projection
├─Performance bottlenecks
├─Quality score distribution
├─Recommended optimizations
├─Export as CSV/JSON

That Was Just Testing.
Here's Everything Else.

The complete lifecycle, end-to-end. No duct tape required.

Playground Testing

Before:

  • −Postman + JSON
  • −Manual curl commands
  • −No conversation history

After:

  • ✓Chat interface
  • ✓Multi-turn testing
  • ✓Real user scenarios

Dataset Upload

Before:

  • −Manual file uploads
  • −Format conversions
  • −Version confusion

After:

  • ✓Drag & drop
  • ✓Auto-format detection
  • ✓Versioned automatically

Fine-Tuning Jobs

Before:

  • −Custom training scripts
  • −Manual hyperparameter tuning
  • −No visibility

After:

  • ✓One-click training
  • ✓Auto-optimization
  • ✓Live progress tracking

Model Versioning

Before:

  • −Git tags for references
  • −Slack: 'What's in staging?'
  • −Manual spreadsheet tracking

After:

  • ✓Click 'Deploy v2.1'
  • ✓Timeline of all versions
  • ✓Rollback in one click

Evaluation Suite

Before:

  • −Write evaluation scripts
  • −Parse outputs manually
  • −Inconsistent metrics

After:

  • ✓Pre-built evaluators
  • ✓LLM-as-judge built in
  • ✓Standardized scores

One-Click Deploy

Before:

  • −Deploy scripts
  • −Environment setup
  • −Hope it works

After:

  • ✓Click deploy button
  • ✓Auto-scaling
  • ✓Instant rollback

Production Monitoring

Before:

  • −CloudWatch logs
  • −Custom dashboards
  • −Leave app to check logs

After:

  • ✓Built-in monitoring
  • ✓Live trace viewer
  • ✓Everything in one UI

Cost Analytics

Before:

  • −Parse billing CSVs
  • −Manual cost tracking
  • −Surprises at month-end

After:

  • ✓Real-time cost tracking
  • ✓Budget alerts
  • ✓Per-model breakdown

Team Collaboration

Before:

  • −Slack threads
  • −Email chains
  • −Tribal knowledge

After:

  • ✓Built-in comments
  • ✓Share workspaces
  • ✓Permission controls

→ Scroll to see all features →

Democratizing Production LLMs

Your Junior Developer Can Ship
Production Models on Day One

We removed the guessing, technical debt, and tribal knowledge.
If you can click, you can build production LLMs.

Without FineTune Lab

(Senior Dev Required)

1

Set up MLflow tracking

2

Write custom evaluation scripts

3

Configure monitoring pipelines

4

Debug across 5 platforms

5

Document in Slack/Notion

6

Pray it works in prod

→ Weeks, senior-dev-only work

With FineTune Lab

(Anyone Can Do It)

1

Upload dataset

2

Click "Train"

3

Review quality scores

4

Click "Deploy"

5

Monitor in same UI

→ Hours, any skill level

If your junior dev can't ship a production model,

your tools are the problem—not your team.

No Migration Required

Already Have Infrastructure?
Keep It.

We integrate with what you already have. No rip-and-replace.

Existing Data

Don't move your datasets. Connect them.

Point us to your S3 bucket, database, or data warehouse. No migration required.

  • ✓Direct S3/GCS integration
  • ✓Database connectors
  • ✓API endpoints
  • ✓Keep data where it is

Current Monitoring

Keep your observability tools. We integrate.

Already using Datadog, CloudWatch, or custom metrics? We'll send data there too.

  • ✓OpenTelemetry compatible
  • ✓Webhook integrations
  • ✓Custom exporters
  • ✓Dual-write support

Your Code

Works with your existing LLM calls. Drop in our SDK.

2 lines of code. Works with OpenAI, Anthropic, AWS Bedrock, Azure, or any provider.

  • ✓Provider-agnostic SDK
  • ✓Drop-in replacement
  • ✓No refactoring needed
  • ✓Backwards compatible

Start using FineTune Lab in 5 minutes. No infrastructure changes required.

Not Your Average Dashboard

Deep Analytics, Not Surface-Level Metrics

7 advanced operations that actually tell you what's wrong and how to fix it. 46 real-time visualizations that go beyond basic line charts.

7 Advanced Analytics Operations

Automated

Anomaly Detection

Catches quality drops BEFORE customers complain

→ Proactive alerts

Predictive Quality Modeling

Forecasts next week's performance trends

→ Plan ahead

Advanced Sentiment Analysis

Beyond basic positive/negative—understand emotions

→ Deep insights

Error Analysis

Finds root causes automatically, no manual debugging

→ Fix issues faster

Benchmark Analysis

Compare against industry standards

→ Know where you stand

Temporal Analysis

Shows quality trends over time

→ Track improvements

Textual Feedback Analysis

Extracts insights from your human notes

→ Learn from evaluations
+

More coming soon

We're constantly adding new operations

46 Real-Time Visualizations

Live Data
Analytics Dashboard
Central hub for all metrics and insights
Analytics Chat (NL queries)
Ask questions about your data in plain English
Metrics Overview
High-level summary of key performance indicators
Rating Distribution
See how users rate your model responses
Success Rate Chart
Track successful vs failed interactions over time
Token Usage Chart
Monitor token consumption and costs
Tool Performance Chart
Measure effectiveness of different tools
Error Breakdown Chart
Categorize and visualize error patterns
Cost Tracking Chart
Track spending across models and providers
Conversation Length Chart
Analyze interaction duration trends
Response Time Chart
Monitor latency and response speeds
Model Performance Table
Compare metrics across different models
Session Comparison Table
Side-by-side session analysis
Training Effectiveness Chart
Measure impact of fine-tuning iterations
Advanced Filter Panel
Filter data by date, model, user, and more
Export Modal
Download analytics in multiple formats
AI Insights Panel
Automated insights from your analytics data
Custom Metric Selector
Choose which metrics to display
Individual Insight Cards
Focused cards for specific metrics
Anomaly Feed
Real-time alerts for unusual patterns
Benchmark Analysis Chart
Compare against industry standards
Cohort Analysis View
Group and analyze user segments
Cohort Card
Summary cards for each cohort
Cohort Comparison Chart
Compare performance across cohorts
Cohort Trend Chart
Track cohort metrics over time
Quality Forecast Chart
Predict future performance trends
Sentiment Analyzer
Analyze emotional tone of interactions
Sentiment Dashboard
Comprehensive sentiment metrics view
Sentiment Trend Chart
Track sentiment changes over time
SLA Breach Chart
Monitor service level agreement violations
Provider Telemetry Panel
Track metrics by cloud provider
Research Jobs Panel
Monitor training job analytics
Experiment Manager
Track A/B tests and experiments
Judgments Breakdown
Detailed view of evaluation results
Judgments Table
Tabular view of all judgments
Active Filters Bar
See currently applied filters at a glance
Export Button
Quick export to CSV, JSON, or Excel
Export Format Selector
Choose your preferred export format
Export Type Selector
Select which data to export
Export History
Access previously exported files
Download Link
Direct download links for exports
Contributing Factors List
Identify root causes of issues
Recommendation Card
AI-generated improvement suggestions
Root Cause Timeline
Trace issues back to their source
Trace View
Detailed execution trace for debugging
7
Advanced operations running automatically
46
Real-time visualizations at your fingertips
0
Manual SQL queries or dashboard building
Killer Feature

Ask Questions. Get Answers.

Forget SQL queries and dashboard hunting. Just ask in plain English.

Analytics Chat

Natural language queries powered by AI

Why did response time increase last Tuesday?

AI analyzes logs, finds root cause, shows affected conversations

[Visual data & charts here]

Which model performs best for customer support?

Compares all models across 7 metrics, ranks by success rate

[Visual data & charts here]
Analyzing your data...
Try: "What caused the quality drop last week?"

"Show me conversations rated 1-star this week"

→ Filtered list with sentiment breakdown and common failure patterns

"What's the ROI of our last training run?"

→ Before/after metrics, cost analysis, quality improvement %

Your data. Your language. Instant insights.
No SQL. No dashboard hunting. Just ask.

Three Tiers, One Platform

Start with a 15-day trial. Upgrade to Pro for advanced features. Scale with Pro Plus for teams.

Free Trial

  • ✓15-day trial period
  • ✓Everything in Pro
  • ✓Model A/B Testing
  • ✓Advanced Analytics Dashboard
  • ✓Email support (24hr response)

Pro

  • ✓Model A/B Testing
  • ✓Advanced Analytics Dashboard
  • ✓Priority Training Queue
  • ✓GraphRAG Analytics
  • ✓Advanced Metrics Suite
  • ✓Priority support

Pro Plus

  • ✓Everything in Pro
  • ✓Unlimited team members
  • ✓Team workspace
  • ✓Team collaboration tools
  • ✓50 GB storage
  • ✓Priority support

Built For Every AI Use Case

From chatbots to content generation, improve any AI application

AI Customer Support

Train chatbots on real support conversations. Improve resolution rates continuously.

32% faster resolution18% quality improvement

E-commerce AI Assistants

Optimize product recommendations and shopping assistance based on customer behavior.

15% conversion liftReal customer patterns

Content Generation

Fine-tune models on what customers actually engage with, not generic training data.

2x engagementHigher quality output

Developer Tools

Improve code completion and generation with real developer workflows.

40% acceptance rateProduction-validated

Enterprise AI

Deploy internal AI tools with quality monitoring and continuous improvement.

Measurable ROICompliance-ready

AI Features

Launch any AI feature with confidence. Monitor quality and iterate fast.

Deploy weeklyZero guesswork

Simple, Transparent Pricing

Choose the plan that fits your scale. Start with a 15-day free trial.

MonthlyYearly(Save up to 11%)

Free Trial

15 days to explore everything

Free
  • 🚀 15-day trial period
  • 🚀 Everything in Pro
  • 🚀 Model A/B Testing
  • 🚀 Advanced Analytics Dashboard
  • 🚀 Priority Training Queue
  • 🚀 Email support (24hr response)
Most Popular

Pro

For professional developers

$297/mo
  • 🚀 Model A/B Testing
  • 🚀 Advanced Analytics Dashboard
  • 🚀 Priority Training Queue
  • 🚀 DAG Training Workflows
  • 🚀 GraphRAG Analytics
  • 🚀 Advanced Metrics Suite
  • 🚀 Custom Integrations
  • 🚀 Priority support

Pro Plus

For scaling teams

$497/mo
  • 🚀 Model A/B Testing
  • 🚀 Advanced Analytics Dashboard
  • 🚀 Priority Training Queue
  • 🚀 DAG Training Workflows
  • 🚀 GraphRAG Analytics
  • 🚀 Advanced Metrics Suite
  • 🚀 Custom Integrations
  • 🚀 Priority support
  • 🚀 Unlimited team members
  • 🚀 Team workspace
  • 🚀 Team collaboration tools

Enterprise

Custom solutions for your organization

Custom Pricing
  • 🚀 Everything in Pro Plus
  • 🚀 Dedicated Support Engineer
  • 🚀 Custom SLA & Contracts
  • 🚀 On-Premise Deployment
  • 🚀 White Label Options
  • 🚀 Full API Access
  • 🚀 Unlimited team members
  • 🚀 Custom integrations
  • 🚀 Volume discounts available

Detailed Comparison

FeatureFree TrialProPro PlusEnterprise
Storage (Datasets/Logs)5K MB10K MB51K MBUnlimited
Concurrent Training JobsUnlimitedUnlimitedUnlimitedUnlimited
Team Members11UnlimitedUnlimited

Frequently Asked Questions

Everything you need to know before getting started

Still have questions?

We're here to help. Book a demo or reach out to our team.

Ready to See It
In Action?

Choose your path. No pressure. No commitment.

Try Your Model Now

Test with real data
No signup required
Takes 2 minutes

Start Building

Full platform access
Free during beta
No credit card

Book a Walkthrough

30-min demo with your data
Questions answered live
Team-ready guidance

✓ No credit card required • ✓ Free during beta • ✓ Cancel anytime