Workflow Eval Detail

Burned-in Captions

Analyzes video frames to detect hardcoded captions baked into the visual content—useful for compliance checks and accessibility audits.

Latest Runcompleted
muxinc/ai
maind8d0122·@mux/ai v0.53.0
Cases
21
Avg Score
0.99
Avg Latency
4.46s
Avg Cost
$0.0031
Avg Cost / Min
$0.0109/min
Avg Tokens
2,961
TL;DR

Burned-in Captions achieved a 0.991 average score with strong integrity and validation results, while gpt-5.1 is recommended for quality and latency and gpt-5.6-luna for lowest cost.

Best Quality
openai
gpt-5.1
Fastest
openai
gpt-5.1
Most Economical
openai
gpt-5.6-luna

What we measure

Each eval run captures efficacy, efficiency, and expense. We use this data to compare providers and track regressions over time.

Efficacy
Quality + correctness
Efficiency
Latency + token usage
Expense
Cost per request

Workflow snapshot

Suite statussuccess
Suite average score0.99
Suite duration1 minute 33 seconds
Last suite runOct 16, 09:36 PM

Evaluation criteria

From eval tests

We evaluate caption detection accuracy, confidence calibration, and response integrity alongside speed and cost thresholds.

Captions Detected
[ DIRECTOR YELLING SCENE: 1, TAKE: 9 ]
Spatial Decomposition
Efficacy checks
  • Caption presence matches ground truth labels.
  • Confidence >0.8 when captions are expected.
  • Confidence is 0-1, language is string or null, and storyboard URL is HTTPS.
Efficiency targets
  • Latency: scores are normalized between 0 and 1. Under 5s earns 1.0; past 12s trends toward 0.
  • Token usage: scores are normalized between 0 and 1. Under 4,000 tokens earns 1.0; higher usage reduces the score.
Expense guardrails
  • Estimated cost under $0.012 per request for full score.
  • Usage data must include total tokens for cost analysis.

Provider breakdown

Run d8d0122
Efficacy scoreHigher is better
LatencyLower is better
Token UsageLower is better
CostLower is better
ProviderModelCasesAvg ScoreAvg LatencyAvg TokensAvg CostAvg Cost / Min
anthropicclaude-sonnet-4-5312.09s3,184$0.0099$0.0346/min
googlegemini-2.5-flash315.01s2,578$0.0026$0.009/min
googlegemini-3-flash-preview314.54s3,346$0.0036$0.0125/min
googlegemini-3.1-flash-lite311.98s2,624$0.0007$0.0024/min
openaigpt-5-mini30.9410.57s3,816$0.0025$0.0088/min
openaigpt-5.1311.95s2,279$0.0022$0.0077/min
openaigpt-5.6-luna315.09s2,902$0.0004$0.0013/min

Recent cases

Latest run · 21 cases
anthropic ·claude-sonnet-4-5Oct 16, 09:38 PM
Asset gIRjPqM
Score
1
Latency
1.7s
Cost
$0.0089
anthropic ·claude-sonnet-4-5Oct 16, 09:38 PM
Asset gEvCHSJ
Score
1
Latency
2.42s
Cost
$0.0104
anthropic ·claude-sonnet-4-5Oct 16, 09:38 PM
Asset atuutlT
Score
1
Latency
2.13s
Cost
$0.0104
google ·gemini-2.5-flashOct 16, 09:38 PM
Asset gIRjPqM
Score
1
Latency
5.22s
Cost
$0.0027
google ·gemini-2.5-flashOct 16, 09:38 PM
Asset gEvCHSJ
Score
0.99
Latency
5.56s
Cost
$0.0029
google ·gemini-2.5-flashOct 16, 09:38 PM
Asset atuutlT
Score
1
Latency
4.25s
Cost
$0.0022
google ·gemini-3-flash-previewOct 16, 09:38 PM
Asset gIRjPqM
Score
1
Latency
3.97s
Cost
$0.0033
google ·gemini-3-flash-previewOct 16, 09:38 PM
Asset gEvCHSJ
Score
1
Latency
4.77s
Cost
$0.0039
google ·gemini-3-flash-previewOct 16, 09:38 PM
Asset atuutlT
Score
1
Latency
4.88s
Cost
$0.0035
google ·gemini-3.1-flash-liteOct 16, 09:38 PM
Asset gIRjPqM
Score
1
Latency
1.37s
Cost
$0.0007
google ·gemini-3.1-flash-liteOct 16, 09:38 PM
Asset gEvCHSJ
Score
1
Latency
1.61s
Cost
$0.0007
google ·gemini-3.1-flash-liteOct 16, 09:38 PM
Asset atuutlT
Score
1
Latency
2.96s
Cost
$0.0007
openai ·gpt-5-miniOct 16, 09:38 PM
Asset gIRjPqM
Score
1
Latency
5.46s
Cost
$0.0014
openai ·gpt-5-miniOct 16, 09:38 PM
Asset gEvCHSJ
Score
0.94
Latency
11.2s
Cost
$0.0026
openai ·gpt-5-miniOct 16, 09:38 PM
Asset atuutlT
Score
0.89
Latency
15.04s
Cost
$0.0035
openai ·gpt-5.1Oct 16, 09:38 PM
Asset gIRjPqM
Score
1
Latency
1.57s
Cost
$0.0014
openai ·gpt-5.1Oct 16, 09:38 PM
Asset gEvCHSJ
Score
1
Latency
2.15s
Cost
$0.0019
openai ·gpt-5.1Oct 16, 09:38 PM
Asset atuutlT
Score
1
Latency
2.14s
Cost
$0.0033
openai ·gpt-5.6-lunaOct 16, 09:38 PM
Asset gIRjPqM
Score
0.99
Latency
6.16s
Cost
$0.0007
openai ·gpt-5.6-lunaOct 16, 09:38 PM
Asset gEvCHSJ
Score
1
Latency
5.21s
Cost
$0.0003
openai ·gpt-5.6-lunaOct 16, 09:38 PM
Asset atuutlT
Score
1
Latency
3.91s
Cost
$0.0002