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PerplexityvsTelnyx

Perplexity vs Telnyx: Token Pricing, Speed & Intelligence

Full comparison of Perplexity and Telnyx — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Rates sourced from public APIs — verify before use.

Perplexity

Agent API, Router API, Search API, Embeddings API — Sonar deprecated Sept 27, 2026

Perplexity has restructured its API platform in 2026. Sonar Chat Completions is now the Agent API, which provides access to third-party models (OpenAI, Anthropic, Google, xAI, Z.AI, Moonshot AI, NVIDIA) at direct provider rates with no markup. The Router API routes requests across models with per-token billing. The Search API provides real-time web retrieval billed per request. The Embeddings API offers pplx-embed-v1 models. Sonar is deprecated September 27, 2026. Check docs.perplexity.ai/docs/getting-started/pricing for current rates.

ResearchReal-time dataFact-checkingNews summarisationAgentic researchRAG pipelinesMulti-provider routing
Proprietary models

Telnyx

OpenAI-compatible inference API — GLM-5.3, Kimi, DeepSeek, MiniMax

Telnyx Inference API provides OpenAI-compatible access to a curated set of open-weight and frontier models including GLM-5.3 Flash, Kimi K2.6, DeepSeek V4 Flash, and MiniMax-M3. PAYG pricing with no minimum spend. Telnyx is primarily known as a communications platform; the inference API is a newer addition to their product suite.

ChatCodingCost-sensitive workloads
Open-weight hostHosts open weights

Key metric comparison

Perplexity
Telnyx
Cheapest input ($/1M)

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Cheapest output ($/1M)

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Peak throughput

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Best latency (TTFT)

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Intelligence score

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Context window

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Live token pricing

Strengths and weaknesses

Perplexity

Agent API: access OpenAI, Anthropic, Google, xAI, Z.AI, Moonshot AI, NVIDIA at direct provider rates
Search API: real-time web retrieval with advanced filtering
Router API: intelligent model routing with per-token billing at model rates
Embeddings API: pplx-embed-v1 models for semantic search and RAG
Agent API tools: web_search, fetch_url, people_search, sandbox
Sonar Deep Research for multi-step research with citations
Sonar deprecated Sept 27, 2026 — migration required
Agent API is a pass-through — no proprietary frontier model at this tier
No vision or multimodal support on Sonar models

Telnyx

OpenAI-compatible API — drop-in replacement for existing integrations
Competitive pricing on GLM-5.3 Flash and DeepSeek V4 Flash
PAYG with no minimum spend
Prompt caching on GLM-5.3 Flash (cached input at $0.027/1M)
Smaller model catalog vs major inference hubs
Inference is a secondary product — communications is the core business
Limited benchmark transparency vs dedicated inference providers

Key differentiators

Perplexity

An API platform combining real-time web search, multi-provider model routing (OpenAI, Anthropic, Google, xAI at direct rates), and purpose-built research tools under one key.

Telnyx

OpenAI-compatible inference API from a communications platform, with competitive rates on GLM-5.3 Flash and DeepSeek V4 Flash.

Frequently asked questions

Perplexity FAQs

What APIs does Perplexity offer in 2026?

Perplexity offers four APIs: Agent API (multi-step agentic tasks with third-party models at direct provider rates), Router API (intelligent model routing), Search API (real-time web retrieval, per-request billing), and Embeddings API (pplx-embed-v1 models). Check docs.perplexity.ai/docs/getting-started/pricing for current rates.

Is the original Sonar model still available?

No. The original Sonar Chat Completions API is deprecated as of September 27, 2026. It has been replaced by the Agent API. Migrate to the Agent API for continued access to search-augmented LLM capabilities.

What is the Perplexity Agent API?

The Agent API provides access to third-party models from OpenAI, Anthropic, Google, xAI, Z.AI, Moonshot AI, and NVIDIA at direct provider rates with no markup. It includes tools: web_search, fetch_url, people_search, and sandbox. Check docs.perplexity.ai for current tool rates.

Telnyx FAQs

What models does Telnyx Inference API offer?

As of October 2026: GLM-5.3 Flash ($0.135/$0.45 per 1M tokens, cached $0.027), Kimi K2.6 ($0.665/$4.00), DeepSeek V4 Flash ($0.130/$0.260), and MiniMax-M3 ($0.270/$1.100). All are OpenAI-compatible. See telnyx.com/pricing/inference-api for current rates.

Is Telnyx Inference API OpenAI-compatible?

Yes. Telnyx provides an OpenAI-compatible REST API, so you can use it as a drop-in replacement in any application that supports custom base URLs.

Does Telnyx offer prompt caching?

Yes, on GLM-5.3 Flash. Cached input tokens are billed at $0.027/1M vs $0.135/1M standard.

Provider resources

Perplexity

Provider page
Website
PricingDocs

Telnyx

Provider page
Website
Pricing

Perplexity — Agent API, Router API, Search API, Embeddings API — Sonar deprecated Sept 27, 2026

Perplexity has restructured its API platform in 2026. Sonar Chat Completions is now the Agent API, which provides access to third-party models (OpenAI, Anthropic, Google, xAI, Z.AI, Moonshot AI, NVIDIA) at direct provider rates with no markup. The Router API routes requests across models with per-token billing. The Search API provides real-time web retrieval billed per request. The Embeddings API offers pplx-embed-v1 models. Sonar is deprecated September 27, 2026. Check docs.perplexity.ai/docs/getting-started/pricing for current rates.

An API platform combining real-time web search, multi-provider model routing (OpenAI, Anthropic, Google, xAI at direct rates), and purpose-built research tools under one key.

Telnyx — OpenAI-compatible inference API — GLM-5.3, Kimi, DeepSeek, MiniMax

Telnyx Inference API provides OpenAI-compatible access to a curated set of open-weight and frontier models including GLM-5.3 Flash, Kimi K2.6, DeepSeek V4 Flash, and MiniMax-M3. PAYG pricing with no minimum spend. Telnyx is primarily known as a communications platform; the inference API is a newer addition to their product suite.

OpenAI-compatible inference API from a communications platform, with competitive rates on GLM-5.3 Flash and DeepSeek V4 Flash.

Key strengths compared

Perplexity

  • Agent API: access OpenAI, Anthropic, Google, xAI, Z.AI, Moonshot AI, NVIDIA at direct provider rates
  • Search API: real-time web retrieval with advanced filtering
  • Router API: intelligent model routing with per-token billing at model rates
  • Sonar deprecated Sept 27, 2026 — migration required
  • Agent API is a pass-through — no proprietary frontier model at this tier

Telnyx

  • OpenAI-compatible API — drop-in replacement for existing integrations
  • Competitive pricing on GLM-5.3 Flash and DeepSeek V4 Flash
  • PAYG with no minimum spend
  • Smaller model catalog vs major inference hubs
  • Inference is a secondary product — communications is the core business

Key weaknesses compared

Perplexity

  • Sonar deprecated Sept 27, 2026 — migration required
  • Agent API is a pass-through — no proprietary frontier model at this tier
  • No vision or multimodal support on Sonar models

Telnyx

  • Smaller model catalog vs major inference hubs
  • Inference is a secondary product — communications is the core business
  • Limited benchmark transparency vs dedicated inference providers

Provider category context

Perplexity is a inference api, founded in 2022. Telnyx is a inference api, founded in 2009. Both are inference api providers — the comparison is primarily about pricing, model selection, and feature differentiation within the same tier.

How to choose between them

Both Perplexity and Telnyx host open-weight models. The key differentiators are latency, throughput, and which specific model versions each provider offers. Check the speed metrics above — inference API providers often differ significantly on tokens-per-second for the same model. Pricing is typically competitive between them; availability of specific model versions (e.g., Llama 3.1 405B, DeepSeek V3) may be the deciding factor.