ModelPriceWatch.com
Last scan 2026-09-29 Models tracked 272 Providers 35 Cheapest paid Granite 4.0 H Micro $0.017/Mtok in Every price links to its source

OpenAI price history

Every pricing change we record for OpenAI API models, newest first. Tracking began Feb 5, 2024. Prices re-verified Sep 29, 2026.

What changed

39 recorded changes · newest first · every move keeps its receipt
  1. Sep 23, 2026

    New model added: GPT-6 Sol new listing

    GPT-6 Sol began being tracked.

  2. Sep 23, 2026

    New model added: GPT-6 Luna new listing

    GPT-6 Luna began being tracked.

  3. Sep 3, 2026

    New model added: GPT-6 Astra new listing

    GPT-6 Astra began being tracked.

  4. Aug 25, 2026

    New model added: GPT-5 new listing

    GPT-5 began being tracked.

  5. Aug 25, 2026

    New model added: GPT-5 mini new listing

    GPT-5 mini began being tracked.

  6. Aug 25, 2026

    New model added: GPT-5 nano new listing

    GPT-5 nano began being tracked.

  7. Aug 25, 2026

    New model added: GPT-5 Pro new listing

    GPT-5 Pro began being tracked.

  8. Aug 25, 2026

    New model added: o3 new listing

    o3 began being tracked.

  9. Aug 25, 2026

    New model added: o3-pro new listing

    o3-pro began being tracked.

  10. Aug 24, 2026

    New model added: GPT-4o new listing

    GPT-4o began being tracked.

  11. Aug 24, 2026

    New model added: GPT-4o mini new listing

    GPT-4o mini began being tracked.

  12. Aug 24, 2026

    New model added: GPT-5.1 new listing

    GPT-5.1 began being tracked.

  13. Aug 24, 2026

    New model added: GPT-3.5 Turbo new listing

    GPT-3.5 Turbo began being tracked.

  14. Aug 24, 2026

    New model added: GPT-4 new listing

    GPT-4 began being tracked.

  15. Aug 24, 2026

    New model added: GPT-4 Turbo new listing

    GPT-4 Turbo began being tracked.

  16. Aug 24, 2026

    New model added: o1 new listing

    o1 began being tracked.

  17. Aug 24, 2026

    New model added: o1-pro new listing

    o1-pro began being tracked.

  18. Aug 21, 2026

    Price change: GPT-5.6 Sol price move

    input_per_mtok: $5.00 → $4.00 · output_per_mtok: $30.00 → $20.00 · cached_input_per_mtok: $0.50 → $0.40

  19. Aug 17, 2026

    New model added: GPT-Realtime-2.1 new listing

    GPT-Realtime-2.1 began being tracked.

  20. Aug 17, 2026

    New model added: GPT-Realtime-2.1 mini new listing

    GPT-Realtime-2.1 mini began being tracked.

  21. Aug 17, 2026

    New model added: GPT-Audio-1.5 new listing

    GPT-Audio-1.5 began being tracked.

  22. Aug 17, 2026

    New model added: GPT-5.6 Cyber new listing

    GPT-5.6 Cyber began being tracked.

  23. Aug 1, 2026

    Price change: GPT-5.6 Terra price move

    input_per_mtok: $2.50 → $2.00 · output_per_mtok: $15.00 → $12.00 · cached_input_per_mtok: $0.25 → $0.20

  24. Aug 1, 2026

    Price change: GPT-5.6 Luna price move

    input_per_mtok: $1.00 → $0.20 · output_per_mtok: $6.00 → $1.20 · cached_input_per_mtok: $0.10 → $0.02

  25. Jul 9, 2026

    New model added: GPT-5.6 Sol new listing

    GPT-5.6 Sol began being tracked.

  26. Jul 9, 2026

    New model added: GPT-5.6 Terra new listing

    GPT-5.6 Terra began being tracked.

  27. Jul 9, 2026

    New model added: GPT-5.6 Luna new listing

    GPT-5.6 Luna began being tracked.

  28. Jul 8, 2026

    New model added: GPT-5.2 new listing

    GPT-5.2 began being tracked.

  29. Jul 8, 2026

    New model added: GPT-5.2 Pro new listing

    GPT-5.2 Pro began being tracked.

  30. Jul 8, 2026

    New model added: GPT-5.2 Codex new listing

    GPT-5.2 Codex began being tracked.

  31. Jul 8, 2026

    New model added: GPT-5.2 Chat new listing

    GPT-5.2 Chat began being tracked.

  32. Jul 4, 2026

    Price change: GPT-4.1 mini price move

    cached_input_per_mtok: $0.20 → $0.10

  33. Jul 4, 2026

    Price change: GPT-4.1 nano price move

    cached_input_per_mtok: $0.05 → $0.025

  34. Jul 4, 2026

    Price change: o4-mini price move

    cached_input_per_mtok: $0.55 → $0.275

  35. Jul 3, 2026

    New model added: GPT-5.5 Pro new listing

    GPT-5.5 Pro began being tracked.

  36. Jul 3, 2026

    New model added: GPT-5.4 Pro new listing

    GPT-5.4 Pro began being tracked.

  37. Jul 3, 2026

    New model added: GPT-5.4 nano new listing

    GPT-5.4 nano began being tracked.

  38. Jul 3, 2026

    New model added: GPT-5.3 Chat new listing

    GPT-5.3 Chat began being tracked.

  39. Jul 3, 2026

    New model added: GPT-5.3 Codex new listing

    GPT-5.3 Codex began being tracked.

Current OpenAI prices

34 models · cheapest blended first

Per 1M tokens, cheapest blended first. "First tracked" is when this model entered our price history.

Current OpenAI model prices per 1M tokens with the date each entered our price history
Model Blended* Input Output First tracked
text-embedding-3-small $0.020 $0.020 — Feb 5, 2024
text-embedding-3-large $0.130 $0.130 — Feb 5, 2024
GPT-5 nano $0.138 $0.050 $0.400 Aug 25, 2026
GPT-6 Luna $0.200 $0.100 $0.500 Sep 23, 2026
GPT-4o mini $0.262 $0.150 $0.600 Aug 24, 2026
GPT-5.6 Luna $0.450 $0.200 $1.20 Jul 9, 2026
GPT-5.4 nano $0.463 $0.200 $1.25 Mar 17, 2026
GPT-5 mini $0.688 $0.250 $2.00 Aug 25, 2026
GPT-4.1 mini $0.700 $0.400 $1.60 Apr 14, 2025
GPT-Realtime-2.1 mini $1.05 $0.600 $2.40 Aug 17, 2026
GPT-5.4 mini $1.69 $0.750 $4.50 Mar 17, 2026
GPT-5.1 $3.44 $1.25 $10.00 Aug 24, 2026
GPT-5 $3.44 $1.25 $10.00 Aug 25, 2026
GPT-4.1 $3.50 $2.00 $8.00 Apr 14, 2025
o3 $3.50 $2.00 $8.00 Aug 25, 2026
GPT-6 Sol $4.00 $2.00 $10.00 Sep 23, 2026
GPT-Audio-1.5 $4.38 $2.50 $10.00 Aug 17, 2026
GPT-4o $4.38 $2.50 $10.00 Aug 24, 2026
GPT-5.6 Terra $4.50 $2.00 $12.00 Jul 9, 2026
GPT-5.3 Codex $4.81 $1.75 $14.00 Mar 2, 2026
GPT-5.2 $4.81 $1.75 $14.00 Jul 8, 2026
GPT-5.4 $5.63 $2.50 $15.00 Mar 9, 2026
GPT-5.6 Sol $8.00 $4.00 $20.00 Jul 9, 2026
GPT-Realtime-2 $9.00 $4.00 $24.00 May 11, 2026
GPT-Realtime-2.1 $9.00 $4.00 $24.00 Aug 17, 2026
GPT-5.5 $11.25 $5.00 $30.00 Apr 27, 2026
GPT-Image-2 $13.50 $8.00 $30.00 May 6, 2026
GPT-6 Astra $20.00 $10.00 $50.00 Sep 3, 2026
GPT-5.6 Cyber $28.13 $12.50 $75.00 Aug 17, 2026
o3-pro $35.00 $20.00 $80.00 Aug 25, 2026
GPT-5 Pro $41.25 $15.00 $120.00 Aug 25, 2026
GPT-5.2 Pro $57.75 $21.00 $168.00 Jul 8, 2026
GPT-5.5 Pro $67.50 $30.00 $180.00 Apr 27, 2026
GPT-5.4 Pro $67.50 $30.00 $180.00 Mar 9, 2026
* Blended = (3×input + 1×output) ÷ 4 $/1M tokens MODELPRICEWATCH.COM · 2026-09-29

About this log

ModelPriceWatch re-verifies OpenAI API pricing against its official pricing page on a twice-daily refresh cycle and records every change here.

OpenAI overview

Quick stats

Models tracked
34
Recorded changes
39
Tracking since
Feb 5, 2024
Last change
Sep 23, 2026