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First-party APIs OpenAI-compatible US

OpenAI API.

OpenAI's first-party API for GPT, o-series, embedding, and image models.

Sign up on OpenAI API ↗ Docs ↗ Pricing ↗
Cheapest 12 models

Where the floor is.

Sorted cheapest-first by $/M input. Useful when you're looking for the floor before picking a model.

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At a glance

Service type
First-party APIs
Trust tier
Tier 1
Headquarters
US
OpenAI-compat
Yes
Open weights
No
Proprietary
Yes

When to pick OpenAI API

Best for

  • Full feature coverage — prompt caching, batch tier, function calling, fine-tuning.
  • The lowest per-token rate for the maker's own models.
  • Production workloads where a direct billing relationship matters.

Avoid for

  • Multi-model workflows that need a unified billing surface.
  • Anywhere the maker's own SLA isn't sufficient.

Models on OpenAI API

Pricing + measured speed + self-host alternative, one row per model. Click a column header to sort.

66 models · 0 benchmarked
Model ↕ Maker ↕ Access ↕ $/M in ↕ $/M out ↕ Tokens/sec ↕ TTFT ↕ Self-host on ↕
OpenAI: GPT-4 OpenAI api direct $30.0 $60.0 — — API only Open →
OpenAI: GPT-3.5 Turbo Instruct OpenAI api direct $1.5 $2.0 — — API only Open →
OpenAI: GPT-3.5 Turbo 16k OpenAI api direct $3.0 $4.0 — — API only Open →
OpenAI: GPT-4 (older v0314) OpenAI api direct $30.0 $60.0 — — API only Open →
OpenAI: GPT-3.5 Turbo OpenAI api direct $0.5 $1.5 — — API only Open →
OpenAI: o4 Mini OpenAI api direct $1.1 $4.4 — — API only Open →
gpt-oss-120b-Turbo OpenAI api direct — — — — 1× Nvidia A100 · INT4 Open →
Whisper Medium OpenAI api direct — — — — 1× Nvidia Titan V · FP16 Open →
Whisper Small OpenAI api direct — — — — 1× Nvidia Titan V · FP16 Open →
Whisper Base OpenAI api direct — — — — 1× Nvidia Titan V · FP16 Open →
Whisper Tiny OpenAI api direct — — — — 1× Nvidia Titan V · FP16 Open →
OpenAI: GPT-5.2 OpenAI api direct $1.75 $14.0 — — API only Open →
OpenAI: GPT-5.1-Codex-Max OpenAI api direct $1.25 $10.0 — — API only Open →
OpenAI: GPT-5.1 OpenAI api direct $1.25 $10.0 — — API only Open →
OpenAI: GPT-5.1 Chat OpenAI api direct $1.25 $10.0 — — API only Open →
OpenAI: GPT-5.1-Codex OpenAI api direct $1.25 $10.0 — — API only Open →
OpenAI: GPT-5.1-Codex-Mini OpenAI api direct $0.25 $2.0 — — API only Open →
OpenAI: gpt-oss-safeguard-20b OpenAI api direct $0.075 $0.3 — — API only Open →
OpenAI: GPT-5 Image Mini OpenAI api direct $2.5 $2.0 — — API only Open →
OpenAI: GPT-5 Image OpenAI api direct $10.0 $10.0 — — API only Open →
OpenAI: o3 Deep Research OpenAI api direct $10.0 $40.0 — — API only Open →
OpenAI: o4 Mini Deep Research OpenAI api direct $2.0 $8.0 — — API only Open →
OpenAI: GPT-5 Pro OpenAI api direct $15.0 $120.0 — — API only Open →
OpenAI: GPT-5 Codex OpenAI api direct $1.25 $10.0 — — API only Open →
OpenAI: GPT-5 Chat OpenAI api direct $1.25 $10.0 — — API only Open →
OpenAI: GPT-5 Mini OpenAI api direct $0.25 $2.0 — — API only Open →
OpenAI: GPT-5 Nano OpenAI api direct $0.05 $0.4 — — API only Open →
OpenAI: o3 Pro OpenAI api direct $20.0 $80.0 — — API only Open →
OpenAI: o4 Mini High OpenAI api direct $1.1 $4.4 — — API only Open →
OpenAI: o3 OpenAI api direct $2.0 $8.0 — — API only Open →
GPT-OSS 120B OpenAI api direct $0.039 $0.18 — — 1× Nvidia H100 · INT4 Open →
GPT-OSS 20B OpenAI api direct $0.03 $0.14 — — 1× Nvidia GeForce RTX 4080 · INT4 Open →
OpenAI: GPT Chat Latest OpenAI api direct $5.0 $30.0 — — API only Open →
OpenAI: GPT-5.5 Pro OpenAI api direct $30.0 $180.0 — — API only Open →
OpenAI: GPT-5.5 OpenAI api direct $5.0 $30.0 — — API only Open →
OpenAI: GPT-5.4 Image 2 OpenAI api direct $8.0 $15.0 — — API only Open →
OpenAI: GPT-5.4 Nano OpenAI api direct $0.2 $1.25 — — API only Open →
OpenAI: GPT-5.4 Mini OpenAI api direct $0.75 $4.5 — — API only Open →
OpenAI: GPT-5.4 Pro OpenAI api direct $30.0 $180.0 — — API only Open →
OpenAI: GPT-5.4 OpenAI api direct $2.5 $15.0 — — API only Open →
OpenAI: GPT-5.3 Chat OpenAI api direct $1.75 $14.0 — — API only Open →
OpenAI: GPT-5.3-Codex OpenAI api direct $1.75 $14.0 — — API only Open →
OpenAI: GPT-5.2-Codex OpenAI api direct $1.75 $14.0 — — API only Open →
OpenAI: GPT-5.2 Chat OpenAI api direct $1.75 $14.0 — — API only Open →
OpenAI: GPT-5.2 Pro OpenAI api direct $21.0 $168.0 — — API only Open →
OpenAI: GPT-4.1 OpenAI api direct $2.0 $8.0 — — API only Open →
OpenAI: GPT-4.1 Mini OpenAI api direct $0.4 $1.6 — — API only Open →
OpenAI: GPT-4.1 Nano OpenAI api direct $0.1 $0.4 — — API only Open →
OpenAI: o1-pro OpenAI api direct $150.0 $600.0 — — API only Open →
OpenAI: GPT-4o-mini Search Preview OpenAI api direct $0.15 $0.6 — — API only Open →
OpenAI: GPT-4o Search Preview OpenAI api direct $2.5 $10.0 — — API only Open →
OpenAI: o3 Mini High OpenAI api direct $1.1 $4.4 — — API only Open →
OpenAI: o3 Mini OpenAI api direct $1.1 $4.4 — — API only Open →
OpenAI: o1 OpenAI api direct $15.0 $60.0 — — API only Open →
OpenAI: GPT-4o (2024-11-20) OpenAI api direct $2.5 $10.0 — — API only Open →
OpenAI: GPT-4o (2024-08-06) OpenAI api direct $2.5 $10.0 — — API only Open →
OpenAI: GPT-4o-mini (2024-07-18) OpenAI api direct $0.15 $0.6 — — API only Open →
OpenAI: GPT-4o (2024-05-13) OpenAI api direct $5.0 $15.0 — — API only Open →
OpenAI: GPT-3.5 Turbo (older v0613) OpenAI api direct $1.0 $2.0 — — API only Open →
OpenAI: GPT-4 Turbo Preview OpenAI api direct $10.0 $30.0 — — API only Open →
OpenAI: GPT-4 Turbo (older v1106) OpenAI api direct $10.0 $30.0 — — API only Open →
GPT-4 Turbo OpenAI api direct $10.0 $30.0 — — API only Open →
GPT-4o Mini OpenAI api direct $0.15 $0.6 — — API only Open →
GPT-4o OpenAI api direct $5.0 $20.0 — — API only Open →
GPT-5 OpenAI api direct $10.0 $40.0 — — API only Open →
Whisper Large v3 OpenAI api direct — — — — 1× Nvidia Titan V · FP8 Open →