AI & SaaS Pricing Tracker / OpenAI API
OpenAI · AI model APIs

OpenAI API pricing

OpenAI API Standard tier text token pricing is charged per 1 million tokens for input, cached input, and output tokens, varying by model.

Pricing model: Usage-basedLast verified: Oct 11, 2026Source: OpenAI pricing page ↗

gpt-6-astra

$10.00 per 1M input tokens
  • Standard tier pricing
  • Input tokens at $10.00 per 1M
  • Cached input tokens at $1.00 per 1M
  • Output tokens at $50.00 per 1M
Usage pricing
  • Input tokens: $10.00 per 1M
  • Cached input tokens: $1.00 per 1M
  • Output tokens: $50.00 per 1M

gpt-6.1-sol

$2.00 per 1M input tokens
  • Standard tier pricing
  • Input tokens at $2.00 per 1M
  • Cached input tokens at $0.10 per 1M
  • Output tokens at $10.00 per 1M
Usage pricing
  • Input tokens: $2.00 per 1M
  • Cached input tokens: $0.10 per 1M
  • Output tokens: $10.00 per 1M

gpt-6-luna

$0.10 per 1M input tokens
  • Standard tier pricing
  • Input tokens at $0.10 per 1M
  • Cached input tokens at $0.01 per 1M
  • Output tokens at $0.50 per 1M
Usage pricing
  • Input tokens: $0.10 per 1M
  • Cached input tokens: $0.01 per 1M
  • Output tokens: $0.50 per 1M

chatgpt chat-latest

$5.00 per 1M input tokens
  • Standard tier pricing
  • Input tokens at $5.00 per 1M
  • Cached input tokens at $0.50 per 1M
  • Output tokens at $30.00 per 1M
Usage pricing
  • Input tokens: $5.00 per 1M
  • Cached input tokens: $0.50 per 1M
  • Output tokens: $30.00 per 1M

gpt-5.3-codex

$1.75 per 1M input tokens
  • Standard tier pricing
  • Input tokens at $1.75 per 1M
  • Cached input tokens at $0.175 per 1M
  • Output tokens at $14.00 per 1M
Usage pricing
  • Input tokens: $1.75 per 1M
  • Cached input tokens: $0.175 per 1M
  • Output tokens: $14.00 per 1M

gpt-rosalind-research

$5.00 per 1M input tokens
Billing begins on October 5, 2026. Cache-write pricing does not apply. Access limited to approved internal research through trusted-access program.
  • Standard tier pricing
  • Input tokens at $5.00 per 1M
  • Cached input tokens at $0.50 per 1M
  • Output tokens at $25.00 per 1M
Usage pricing
  • Input tokens: $5.00 per 1M
  • Cached input tokens: $0.50 per 1M
  • Output tokens: $25.00 per 1M

OpenAI API price history

gpt-6-astragpt-6.1-solgpt-6-lunachatgpt chat-latestgpt-5.3-codexgpt-rosalind-researchgpt-5.2(discontinued)gpt-5.1(discontinued)
$0$5$10$15$20FebMarAprMayJunJulAugSepOct
Headline price per 1M input tokens. Hover for exact prices. The full dated list of changes is below.

OpenAI API pricing changes

History before weekly tracking started is reconstructed from monthly Internet Archive captures of the pricing page, starting Jan 2, 2026.

Oct 4, 2026New planNew plan gpt-6.1-sol at $2.00 per 1M input tokens.
Oct 4, 2026Plan removedgpt-6-sol ($2.00 per 1M input tokens) is no longer listed.
Sep 26, 2026New planNew plan gpt-6-astra at $10.00 per 1M input tokens.
Sep 26, 2026New planNew plan gpt-6-sol at $2.00 per 1M input tokens.
Sep 26, 2026New planNew plan gpt-6-luna at $0.10 per 1M input tokens.
Sep 26, 2026New planNew plan chatgpt chat-latest at $5.00 per 1M input tokens.
Sep 26, 2026New planNew plan gpt-rosalind-research at $5.00 per 1M input tokens.
Sep 26, 2026Plan removedgpt-5.6-sol ($5.00 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.6-terra ($2.00 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.6-luna ($0.20 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.5 ($5.00 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.5-pro ($30.00 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.4 ($2.50 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.4-mini ($0.75 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.4-nano ($0.20 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.4-pro ($30.00 per 1M input tokens) is no longer listed.
Sep 26, 2026Plan removedgpt-5.3-chat-latest ($1.75 per 1M input tokens) is no longer listed.
Aug 1, 2026New planNew plan gpt-5.6-sol at $5.00 per 1M input tokens.
Aug 1, 2026New planNew plan gpt-5.6-terra at $2.00 per 1M input tokens.
Aug 1, 2026New planNew plan gpt-5.6-luna at $0.20 per 1M input tokens.
May 3, 2026New planNew plan gpt-5.5 at $5.00 per 1M input tokens.
May 3, 2026New planNew plan gpt-5.5-pro at $30.00 per 1M input tokens.
Apr 1, 2026New planNew plan gpt-5.4 at $2.50 per 1M input tokens.
Apr 1, 2026New planNew plan gpt-5.4-mini at $0.75 per 1M input tokens.
Apr 1, 2026New planNew plan gpt-5.4-nano at $0.20 per 1M input tokens.
Apr 1, 2026New planNew plan gpt-5.4-pro at $30.00 per 1M input tokens.
Apr 1, 2026Plan removedgpt-5.2 ($1.75 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5.1 ($1.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5 ($1.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5-mini ($0.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5-nano ($0.05 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5.2-chat-latest ($1.75 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5.1-chat-latest ($1.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5-chat-latest ($1.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5.2-codex ($1.75 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5.1-codex-max ($1.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5.1-codex ($1.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-5-codex ($1.25 per 1M input tokens) is no longer listed.
Apr 1, 2026Plan removedgpt-4.1 ($2.00 per 1M input tokens) is no longer listed.
Mar 4, 2026New planNew plan gpt-5.3-chat-latest at $1.75 per 1M input tokens.
Mar 4, 2026New planNew plan gpt-5.3-codex at $1.75 per 1M input tokens.
Mar 4, 2026Plan removedgpt-4.1-mini ($0.40 per 1M input tokens) is no longer listed.
Mar 4, 2026Plan removedgpt-4.1-nano ($0.10 per 1M input tokens) is no longer listed.
Feb 10, 2026New planNew plan gpt-5.2-codex at $1.75 per 1M input tokens.
Feb 10, 2026Plan removedgpt-4o ($2.50 per 1M input tokens) is no longer listed.

OpenAI API vs. other AI model APIs

ProductPricing modelLowest paid planHighest listed plan
OpenAI APIUsage-basedgpt-6-luna: $0.10 per 1M input tokensgpt-6-astra: $10.00 per 1M input tokens
Claude APIUsage-basedClaude Haiku 5.5: $0.10 / MTok for prompts up to 100,000 tokensClaude Opus 4.1: $15 / MTok
Gemini APIUsage-basedgemini-2.5-flash-lite: $0.10 per 1M tokensgemini-3.1-pro-preview: $2.00 per 1M tokens
Grok APIUsage-basedgrok-build-0.1: $1.00 / 1M input tokensgrok-4.5: $2.00 / 1M input tokens

From each vendor's latest verified pricing page. Units differ between products, so compare what each plan includes, not only the number.

OpenAI API pricing FAQ

How much does OpenAI API cost?

OpenAI API lists 6 plans: gpt-6-astra at $10.00 per 1M input tokens; gpt-6.1-sol at $2.00 per 1M input tokens; gpt-6-luna at $0.10 per 1M input tokens; chatgpt chat-latest at $5.00 per 1M input tokens; gpt-5.3-codex at $1.75 per 1M input tokens; gpt-rosalind-research at $5.00 per 1M input tokens. Prices as published on OpenAI's pricing page, last verified Oct 11, 2026.

Has OpenAI API pricing changed?

Yes. 45 changes recorded. The most recent, on Oct 4, 2026: New plan gpt-6.1-sol at $2.00 per 1M input tokens.

How is OpenAI API pricing tracked here?

RevExOS reads OpenAI's public pricing page every week, extracts each plan's price, unit and inclusions, and records any difference from the previous check as a dated change. Promotional and introductory prices are noted separately from the regular price.

More AI model APIs pricing

Claude APIGemini APIGrok API