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Anthropic API vs AssemblyAI: pricing, quotas & features (2025)

API for Claude — frontier models for chat, tool use, agents, and long-context reasoning
vs. Best-in-class speech-to-text API — Universal models, 99 languages, low-latency streaming

Data sourced from vendor documentation · Last updated May 2026

Anthropic website ↗AssemblyAI website ↗

Summary

Anthropic API and AssemblyAI are both ai-api platforms, addressing the same core use case with different implementation philosophies and trade-offs. Both offer a free tier, making it easy to prototype without a credit card. AssemblyAI has a broader documented feature set (11 vs 0 features). The right choice depends on your existing stack, team experience, and feature requirements. All pricing and quota data below is sourced from Anthropic API and AssemblyAI's official documentation — not generated by AI or estimated.

Anthropic API vs AssemblyAI: Comparativa de precios, cuotas y características (2025)

En esta comparativa analizamos Anthropic API y AssemblyAI lado a lado — incluyendo precios mensuales, límites del tier gratuito, características técnicas, cuotas de uso (almacenamiento, transferencia, usuarios activos mensuales) y los interfaces de desarrollo disponibles. Todos los datos proceden de la documentación oficial de cada proveedor, no de respuestas generadas por IA.

Anthropic API es una plataforma de la categoría ai-api — API for Claude — frontier models for chat, tool use, agents, and long-context reasoning. Ofrece 3 tiers de precio: Opus 4.7 — usage (personalizado), Sonnet 4.6 — usage (personalizado), Haiku 4.5 — usage (personalizado). Su catálogo en Staxly documenta 0 características y 11 interfazes para desarrolladores.

AssemblyAI pertenece a la categoría ai-api — Best-in-class speech-to-text API — Universal models, 99 languages, low-latency streaming. Ofrece 3 tiers de precio: Free Credits gratuito, Pay-as-you-go gratuito, Enterprise (personalizado). Su catálogo documenta 11 características y 7 interfazes para desarrolladores.

A continuación encontrarás los tiers de precio completos de ambas plataformas, una matriz de cuotas del tier gratuito (transferencia, almacenamiento, MAU, llamadas a la API y otros límites), el listado completo de características y los interfaces (CLI, SDKs, REST, GraphQL, MCP) disponibles para integrar cada servicio.

¿Necesitas estos datos en tu agente de IA (Claude Code, Cursor, Zed)? Instala gratis el servidor MCP de Staxly y tendrás acceso estructurado a Anthropic API, AssemblyAI y más de 130 plataformas para desarrolladores.

Pricing tiers

Anthropic API

Opus 4.7 — usage
Input $5 / output $25 / cache-write $6.25 / cache-read $0.50 per 1M tokens. Batch = 50% off.
Custom
Sonnet 4.6 — usage
Input $3 / output $15 / cache-write $3.75 / cache-read $0.30 per 1M tokens. Batch = 50% off.
Custom
Haiku 4.5 — usage
Input $1 / output $5 / cache-write $1.25 / cache-read $0.10 per 1M tokens. Batch = 50% off.
Custom
Anthropic website ↗

AssemblyAI

Free Credits
$50 in free credits on signup. Full API access.
Free
Pay-as-you-go
Per-hour billing by model. No minimum.
$0 base (usage-based)
Enterprise
Custom contracts. SLA, private deployments, BAA.
Custom
AssemblyAI website ↗

Free-tier quotas head-to-head

Comparing opus-4-7 on Anthropic API vs free-trial on AssemblyAI.

MetricAnthropic APIAssemblyAI
discount batch50 % off—

Features

Anthropic API · 0 features

    AssemblyAI · 11 features

    • Advanced Prompting — Streaming with disfluency + code-switching + realtime diarization.
    • Audio Intelligence — Sentiment, topic detection, summarization, entity detection, content safety, IAB…
    • Auto Punctuation — Smart capitalization + punctuation.
    • Keyterm Prompting — Boost accuracy for domain vocabulary.
    • LeMUR (LLM framework) — Run LLMs over transcripts: Q&A, summary, action items.
    • Medical Mode — Specialized for clinical + medical vocabulary.
    • PII Redaction — Auto-redact credit cards, SSNs, addresses, emails.
    • Pre-recorded Transcription — Upload audio/video URL or file → transcript.
    • Realtime Streaming — WebSocket-based low-latency STT.
    • Speaker Diarization — Identify who spoke when.
    • Webhooks — Auto-notify when transcription finishes.

    Developer interfaces

    KindAnthropic APIAssemblyAI
    CLIClaude Code CLI—
    SDKGo SDK, Java SDK, Python SDK, Ruby SDK, TypeScript SDK (@anthropic-ai/sdk)assemblyai (Node), assemblyai (Python), assemblyai (Ruby), assemblyai-go
    RESTAWS Bedrock, Google Vertex AI, Microsoft Azure AI, REST API (Messages + Agents)AssemblyAI REST API
    OTHER—Streaming WebSocket, Webhooks

    Key takeaways

    • Both Anthropic API and AssemblyAI offer a free tier — Anthropic API ("Opus 4.7 — usage") and AssemblyAI ("Free Credits") — with no credit card required to start.
    • AssemblyAI has a broader documented feature set (11 features) vs. Anthropic API (0 features) in Staxly's catalog.
    • Developer integrations differ: only Anthropic API offers CLI/UI; only AssemblyAI offers OTHER.
    Staxly is an independent catalog of developer platforms. Some links to Anthropic API and AssemblyAI may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.

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