Every model ModelRelay serves, grouped by what it does. Nothing here is ranked: text, speech-to-text and text-to-speech metrics share no units.
| Model | Price |
|---|---|
| Claude Fable 5.1 | $10.00 in · $50.00 out per 1M tokens |
| Claude Opus 5 | $5.00 in · $25.00 out per 1M tokens |
| Claude Sonnet 5 | $2.00 in · $10.00 out per 1M tokens |
| DeepSeek V4 Flash 0731 | $0.22 in · $0.66 out per 1M tokens |
| DeepSeek V4.1 Flash | $0.22 in · $0.66 out per 1M tokens |
| GLM 5.3 Flash | $0.15 in · $0.50 out per 1M tokens |
| GPT-5.6 Luna | $0.20 in · $1.20 out per 1M tokens |
| GPT-5.6 Sol | $5.00 in · $30.00 out per 1M tokens |
| GPT-5.6 Terra | $2.00 in · $12.00 out per 1M tokens |
| GPT-6 Astra | $10.00 in · $50.00 out per 1M tokens |
| Gemini 3.8 Flash | $0.75 in · $3.75 out per 1M tokens |
| Grok 4.6 | $2.00 in · $6.00 out per 1M tokens |
| Kimi K3 | $3.00 in · $15.00 out per 1M tokens |
| Muse Spark 1.3 | $1.25 in · $4.25 out per 1M tokens |
| Muse Spark 1.3 Contributor | $0.10 in · $0.20 out per 1M tokens |
| Nemotron Lightning 3.5 30B A3B | $0.05 in · $0.20 out per 1M tokens |
| Qwen 3.8 Max | $2.00 in · $6.00 out per 1M tokens |
| Qwen3.8 27B | $0.99 in · $1.49 out per 1M tokens |
| Model | Price |
|---|---|
| Grok Voice Transcribe 2.0 | $0.10/audio-hour billed per ms of input audio |
| Whisper Large v3 Turbo | $0.0024/audio-hour billed per ms of input audio |
| Model | Price |
|---|---|
| Gemini 3.8 Flash TTS | $16.50/1M characters billed per input character |
Use ModelRelay's Responses API directly, or point an existing OpenAI or Anthropic SDK at the compatible endpoints.
138 successful streams measured · 30m window
curl https://api.modelrelay.ai/api/v1/responses \
-H "Authorization: Bearer $MODELRELAY_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"claude-sonnet-5","input":"Hello"}'Change the model. Keep everything else.
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