Question 1

What is the current OpenAI API pricing?

Accepted Answer

Core 2026 OpenAI tiers in this calculator: GPT-5.4 ($2.50/1M input, $15/1M output), GPT-5.4 mini ($0.75/$4.5), GPT-5.4 nano ($0.20/$1.25), GPT-4o ($2.50/$10), and GPT-4o-mini ($0.15/$0.60). Prices are per million tokens and may change by region or contract.

Question 2

Which OpenAI model should I use for cost optimization?

Accepted Answer

Use GPT-5.4 nano or GPT-4o-mini for routine traffic, GPT-5.4 mini for balanced quality and speed, and GPT-5.4 or GPT-4o for high-complexity reasoning. Keep older models available for fallback, but route most volume through lower-cost tiers with measured quality gates.

Question 3

How does OpenAI pricing compare to other providers?

Accepted Answer

OpenAI budget tiers like GPT-4o-mini and GPT-5.4 nano are competitive with Gemini Flash and Claude Haiku tiers, while GPT-5.4 and Claude Sonnet 4.6 compete in higher-quality bands. The best option depends on your input/output mix, latency target, and minimum quality threshold.

Question 4

What are OpenAI's rate limits and how do they affect costs?

Accepted Answer

Rate limits vary by tier: Free tier 3 RPM/40K TPM. Tier 1: 500 RPM/30K TPM. Tier 2: 5,000 RPM/100K TPM. Higher tiers available for enterprise. Rate limit errors trigger retries, increasing latency and cost. Plan request distribution and implement backoff strategies to stay within limits.

Question 5

Does OpenAI offer volume discounts?

Accepted Answer

OpenAI offers no automatic volume discounts on API usage. Enterprise customers can negotiate custom pricing for high-volume commitments ($100K+/year). The Volume Program provides committed-use pricing with lower rates. Contact sales for enterprise agreements. Otherwise, optimize by choosing cheaper models.

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