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OpenAI vs Groq: Token Pricing, Speed & Intelligence

Full comparison of OpenAI and Groq — live token pricing, latency, throughput, context window, strengths, weaknesses, and best use cases. Updated July 2026.

OpenAI

GPT-6 Astra, GPT-5.6 Sol/Terra/Luna — plus image, voice, and realtime APIs

OpenAI's September 2026 API lineup spans GPT-6 Astra ($10/$50 per 1M in/out — most capable), GPT-5.6 Sol ($4/$20, promotional), GPT-5.6 Terra ($2/$12, balanced), and GPT-5.6 Luna ($0.20/$1.20, everyday). Beyond text, the platform now includes GPT-Image-2.5 (Sunburst and Flare), GPT-Live-1 voice ($0.05/min), GPT-Realtime-2.1 for low-latency voice agents, and transcription/translation models. Batch API saves 50% on all models.

CodingChatVisionReasoningAgentsVoiceImage generation
Proprietary models

Groq

LPU + LPX inference — the fastest tokens per second, $350M Series A, building hundreds of MW

Groq runs custom Language Processing Units (LPUs) and the newer LPX chips that work alongside NVIDIA next-generation GPUs to deliver unparalleled inference throughput. Groq raised a $350M Series A in 2026 and is building hundreds of megawatts of capacity. Llama 3.3 70B reaches 750+ tokens/second on Groq — 4–5× faster than GPU providers. Positioned as the premier neocloud for fast inference at scale.

SpeedReal-time chatVoice AICost-efficiencyBatch processing
Open-weight hostHosts open weights

Key metric comparison

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

OpenAI

Broadest API surface: text, image, voice, realtime, transcription, translation, web search, code execution
GPT-6 Astra at the frontier; GPT-5.6 Sol at promotional $4/$20 pricing
Prompt caching on all major models (10% of input price)
Batch API: 50% off all models for async workloads
Largest ecosystem — virtually every AI framework supports OpenAI natively
No open-weight models — full vendor lock-in
GPT-6 Astra output at $50/1M is among the highest for frontier tier
Rate limits can be restrictive on lower tiers

Groq

750+ tokens/sec on Llama 3.3 70B — fastest GPU-class inference
Sub-100ms time-to-first-token for real-time applications
LPX chips alongside LPUs for expanded capacity
Very competitive pricing on open-weight models
OpenAI-compatible API
Free tier available
Limited model selection vs. Together AI or Fireworks
No vision model support on most models
No fine-tuning capability

Key differentiators

OpenAI

The most complete AI API platform — GPT-6 Astra to GPT-5.6 Luna covering every capability tier, plus native image, voice, realtime, and transcription APIs under one key.

Groq

Groq's custom LPU/LPX chips deliver 750+ tokens/sec on Llama 3.3 70B — 4–5× faster than any GPU-based provider, now backed by $350M in Series A funding.

Frequently asked questions

OpenAI FAQs

What are the latest OpenAI models as of 2026?

OpenAI's current lineup includes GPT-6 Astra (flagship frontier, $10/$50 per 1M tokens), GPT-5.6 Sol ($4/$20, promotional), GPT-5.6 Terra ($2/$12, balanced), and GPT-5.6 Luna ($0.20/$1.20, everyday). The o-series reasoning models remain available for complex multi-step tasks.

How much does the OpenAI API cost?

GPT-5.6 Sol is at promotional pricing of $4/1M input and $20/1M output tokens. GPT-6 Astra is $10/$50 per 1M tokens. Efficient-tier GPT-5.6 Luna is just $0.20/$1.20. The Batch API cuts all prices by 50% for async workloads, and prompt caching reduces input costs by 50% on eligible requests.

Does OpenAI support prompt caching?

Yes. Prompt caching is available on GPT-6 Astra, GPT-5.6 Sol, and other major models. Cached input tokens are billed at 50% of the standard input price, making long-context and repeated-system-prompt workloads significantly cheaper.

Groq FAQs

How fast is Groq inference?

Groq delivers 750+ tokens/second on Llama 3.3 70B and 1,200+ tokens/second on Llama 3.1 8B. This is 4–5× faster than typical GPU-based providers, making it ideal for real-time applications.

What is Groq's LPX chip?

The LPX is Groq's next-generation inference chip, introduced alongside the existing LPU lineup. It expands Groq's capacity and enables even higher throughput for large-scale deployments.

How much does Groq cost?

Llama 3.3 70B costs $0.59/1M input and $0.79/1M output tokens. Llama 3.1 8B is just $0.05/$0.08 per 1M tokens — among the cheapest options for a capable open-weight model.

Provider resources

OpenAI — GPT-6 Astra, GPT-5.6 Sol/Terra/Luna — plus image, voice, and realtime APIs

OpenAI's September 2026 API lineup spans GPT-6 Astra ($10/$50 per 1M in/out — most capable), GPT-5.6 Sol ($4/$20, promotional), GPT-5.6 Terra ($2/$12, balanced), and GPT-5.6 Luna ($0.20/$1.20, everyday). Beyond text, the platform now includes GPT-Image-2.5 (Sunburst and Flare), GPT-Live-1 voice ($0.05/min), GPT-Realtime-2.1 for low-latency voice agents, and transcription/translation models. Batch API saves 50% on all models.

The most complete AI API platform — GPT-6 Astra to GPT-5.6 Luna covering every capability tier, plus native image, voice, realtime, and transcription APIs under one key.

Groq — LPU + LPX inference — the fastest tokens per second, $350M Series A, building hundreds of MW

Groq runs custom Language Processing Units (LPUs) and the newer LPX chips that work alongside NVIDIA next-generation GPUs to deliver unparalleled inference throughput. Groq raised a $350M Series A in 2026 and is building hundreds of megawatts of capacity. Llama 3.3 70B reaches 750+ tokens/second on Groq — 4–5× faster than GPU providers. Positioned as the premier neocloud for fast inference at scale.

Groq's custom LPU/LPX chips deliver 750+ tokens/sec on Llama 3.3 70B — 4–5× faster than any GPU-based provider, now backed by $350M in Series A funding.

Key strengths compared

OpenAI

  • ▸Broadest API surface: text, image, voice, realtime, transcription, translation, web search, code execution
  • ▸GPT-6 Astra at the frontier; GPT-5.6 Sol at promotional $4/$20 pricing
  • ▸Prompt caching on all major models (10% of input price)

Groq

  • ▸750+ tokens/sec on Llama 3.3 70B — fastest GPU-class inference
  • ▸Sub-100ms time-to-first-token for real-time applications
  • ▸LPX chips alongside LPUs for expanded capacity

Provider category context

OpenAI is a frontier lab, founded in 2015. Groq is a inference api, founded in 2016. OpenAI as a frontier lab trains and serves its own proprietary models. Groq as an inference API provider hosts open-weight models — typically offering lower prices for equivalent capability tiers but without access to proprietary frontier models.

How to choose between them

Choose OpenAI if you need broadest api surface: text, image, voice, realtime, transcription, translation, web search, code execution. Choose Groq if you need 750+ tokens/sec on llama 3.3 70b — fastest gpu-class inference. For high-volume production workloads, run a cost comparison using the token pricing table above with your actual prompt/completion token ratio — the cheapest provider depends heavily on your input-to-output token ratio.