1. Chart data
  2. artificial-analysis
  3. AA-WER Streaming Index (First Partial) vs. Time to First Par
artificial-analysisScatter plot · 32 points · Grok Voice

AA-WER Streaming Index (First Partial) vs. Time to First Partial Transcription After Speech End

The numbers behind a chart artificial-analysis published, redrawn natively. Check the original, study the data, then make your own.

Estimated from the image 37%All xAI modelsAll chart data
Chart by artificial-analysis. Source: x.com

Simplified redraw

Drawn by us from the numbers below. Hover, tap or use the arrow keys.

A simplified redraw: it shows the numbers in our own look, not the look of the original. One accent marks what the chart is about. Values marked with ~ in the table are estimates.

The numbers

First 10 of 32 points are free
GroupSeriesxValueSourceConf.
Grok Voice Transcribe 1.0 (Streaming)xAI0.35~18%Estimate0.30
Qwen3 ASR Flash RealtimeAlibaba Cloud0.5~17%Estimate0.30
Gradium SRT RealtimeGradium0.15~12%Estimate0.30
Nemotron 3 ASR 80msNVIDIA0.2~11%Estimate0.30
Cartesia Ink-2 (semantic endpoints)Cartesia0.3~10.5%Estimate0.30
Smallest Pixel RealtimeSmallest.ai0.1~9.5%Estimate0.30
OpenAI GPT Realtime WhisperOpenAI0.35~9%Estimate0.30
Nemotron 3 ASR 20msNVIDIA0.1~8.5%Estimate0.50
Cartesia Ink Preview (external endpoints)Cartesia0.25~8%Estimate0.30
Deepgram FluxDeepgram0.1~7.5%Estimate0.30

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See all 32 points and download the files

The full table, the JSON, a CSV and the agent skill file for this chart. These are Max in the plan; while this is a prototype your email unlocks them.

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Amazon Transcribe StreamingAmazon Bedrock0.3~7%Estimate0.30
Deepgram Nova-3 RealtimeDeepgram0.15~6.5%Estimate0.30
ElevenLabs Scribe v2 RealtimeElevenLabs0.3~6%Estimate0.30
Azure STT Real-time TranscriptionMicrosoft Azure0.35~5.5%Estimate0.30
Gemini 3.5 Transcribe LiveGoogle0.2~5%Estimate0.30
Nemotron 3 ASR 1120msNVIDIA0.4~4.5%Estimate0.30
Grok Voice Transcribe 2.0 (Streaming)xAI0.5~4%Estimate0.30
Alebeck STTAlebeck0.55~3.5%Estimate0.50
AssemblyAI Universal-2AssemblyAI0.3~3%Estimate0.50
Soniox v5 Real-TimeSoniox0.1~2.5%Estimate0.50
Inworld STT 1 RealtimeInworld0.15~2%Estimate0.30
Mistral ScribeMistral0.2~1.5%Estimate0.50
Cartesia Ink-2 (external endpoints)Cartesia0.25~1%Estimate0.30
Speechmatics Agent STT Linden 1Speechmatics0.3~0.5%Estimate0.30
MAI-Transcribe-2-StreamingMicrosoft AI0.35~0%Estimate0.30
Chirp 3 StreamingArtificial Analysis1.2~6%Estimate0.30
Artificial Analysis1.1~16%Estimate0.50
Modulate STT Streaming English0.5~4%Estimate0.50
Sofrivo v5 Realtime0.05~3%Estimate0.50
Gemini 3.5 Transcribe Live0.2~3%Estimate0.50
AssemblyAI Universal-Streaming0.25~3%Estimate0.50
AssemblyAI U3.5 Realtime Pro - Max Accuracy0.3~1%Estimate0.50
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JSONAgent skill file

API · Max

Use this chart via API

On the Max plan you can pull this chart's numbers with the provenance of each one, as JSON or CSV, with its redraw spec, or call it from an agent over MCP. Chart id e5222c97f4e7.

Approximate values. Our two readings of this chart agreed only in part (confidence 0.37 of 1), so check the original before you quote a number. The API marks it lowConfidence, and ?min_confidence=0.5 leaves it out.

See the Max planAPI docs
PathReturnsPlan
GET/api/v1/charts/e5222c97f4e7Title, publisher, date, form, point count; with a Max key, the data linkOpen
GET/api/v1/charts/e5222c97f4e7/dataEvery point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSVMax
GET/api/v1/charts/e5222c97f4e7/render?view=1The draw-only view this page usesOpen
POST/mcpTool get_chart_data with this id, for Claude, Cursor and other agentsMax
curlMax
curl -s https://viral-chart.com/api/v1/charts/e5222c97f4e7/data \
  -H "Authorization: Bearer $VIRALCHART_KEY"
Claude CodeMax
claude mcp add --transport http viralchart https://viral-chart.com/mcp \
  --header "Authorization: Bearer $VIRALCHART_KEY"

60 requests a minute per key; over that you get 429 with Retry-After. Up to 5 keys per account, made on your account page and shown once. Without Max, the data route answers 402 with a link to the plans. The numbers describe a chart its publisher owns, and every file carries a license note.

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A simplified form: our own look, not the look of the original. Your numbers start from this chart's data.

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All chart data
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Questions people ask

How accurate are these numbers?

They are estimated from the image by two independent passes, with confidence 0.37 on a 0 to 1 scale. Printed numbers read well; values read off an axis can be a few percent off.

Can I reuse this data?

The numbers describe a chart that artificial-analysis published. The image, layout and styling belong to them. Use the numbers with a credit to the publisher, and make your picture from your own data.

How do I get the file?

The JSON, CSV and agent skill file are under the email gate on this page. In this prototype they are static files at /api/charts/e5222c97f4e7.json and /api/charts/e5222c97f4e7.skill.md.