Sources & verification notes

GPT-5.6 Sol

• Exact identifier & access

  Undated API identifier. This pilot does not claim an immutable weights snapshot behind it.

  • GPT-5.6 Sol specifications ↗OpenAI · provider-authored · checked Sep 13, 2026

• First availability

  Effective Jul 9, 2026. Checked Sep 13, 2026. Re-verification needed.

  • API changelog ↗OpenAI · provider-authored · checked Sep 13, 2026

• Availability status

  Effective date not established; this is an observation. Checked Sep 13, 2026. Re-verification needed.

  • GPT-5.6 Sol specifications ↗OpenAI · provider-authored · checked Sep 13, 2026

• Availability status

  Effective date not established; this is an observation. Checked Oct 20, 2026.

  Re-checked against the cited page; unchanged.

  • GPT-5.6 Sol ↗OpenAI · provider-authored · checked Oct 20, 2026
  • Deprecations ↗OpenAI · provider-authored · checked Oct 20, 2026

• Capabilities & limits

  Effective date not established; this is an observation. Checked Sep 13, 2026. Re-verification needed.

  • GPT-5.6 Sol specifications ↗OpenAI · provider-authored · checked Sep 13, 2026

• Capabilities & limits

  Effective date not established; this is an observation. Checked Oct 20, 2026.

  Re-checked against the cited page; unchanged.

  • GPT-5.6 Sol ↗OpenAI · provider-authored · checked Oct 20, 2026

• Input price

  Effective Jul 9, 2026. Checked Sep 13, 2026. Re-verification needed.

  Earlier amount is not verified; the current rate cannot fill this historical gap.

  • API changelog ↗OpenAI · provider-authored · checked Sep 13, 2026

• Input price

  Effective Aug 21, 2026. Checked Sep 13, 2026. Re-verification needed.

  • GPT-5.6 Sol specifications ↗OpenAI · provider-authored · checked Sep 13, 2026
  • API changelog ↗OpenAI · provider-authored · checked Sep 13, 2026

• Input price

  Effective date not established; this is an observation. Checked Sep 23, 2026.

  Derived from the captured rate card's standard token row.

  • Pricing ↗OpenAI · provider-authored · checked Sep 23, 2026
  • GPT-5.6 Sol Model ↗OpenAI · provider-authored · checked Sep 23, 2026

• Output price

  Effective Jul 9, 2026. Checked Sep 13, 2026. Re-verification needed.

  Earlier amount is not verified; the current rate cannot fill this historical gap.

  • API changelog ↗OpenAI · provider-authored · checked Sep 13, 2026

• Output price

  Effective Aug 21, 2026. Checked Sep 13, 2026. Re-verification needed.

  • GPT-5.6 Sol specifications ↗OpenAI · provider-authored · checked Sep 13, 2026
  • API changelog ↗OpenAI · provider-authored · checked Sep 13, 2026

• Output price

  Effective date not established; this is an observation. Checked Sep 23, 2026.

  Derived from the captured rate card's standard token row.

  • Pricing ↗OpenAI · provider-authored · checked Sep 23, 2026
  • GPT-5.6 Sol Model ↗OpenAI · provider-authored · checked Sep 23, 2026

• Model card

  Effective date not established; this is an observation. Checked Sep 13, 2026. Re-verification needed.

  • GPT-5.6 Sol Model ↗OpenAI · provider-authored · checked Sep 23, 2026

• Model card

  Effective date not established; this is an observation. Checked Sep 23, 2026.

  • GPT-5.6 Sol Model ↗OpenAI · provider-authored · checked Sep 23, 2026

• Official announcement

  Effective Jul 9, 2026. Checked Sep 23, 2026.

  • GPT-5.6: Frontier intelligence that scales with your ambition ↗OpenAI · provider-authored · checked Sep 23, 2026

• Provider description

  Effective date not established; this is an observation. Checked Sep 13, 2026. Re-verification needed.

  • GPT-5.6 Sol Model ↗OpenAI · provider-authored · checked Sep 23, 2026

• Full rate card

  Effective date not established; this is an observation. Checked Sep 13, 2026. Re-verification needed.

  • GPT-5.6 Sol Model ↗OpenAI · provider-authored · checked Sep 23, 2026

• Full rate card

  Effective date not established; this is an observation. Checked Sep 23, 2026.

  • Pricing ↗OpenAI · provider-authored · checked Sep 23, 2026
  • GPT-5.6 Sol Model ↗OpenAI · provider-authored · checked Sep 23, 2026

• License

  Effective date not established; this is an observation. Checked Sep 13, 2026. Re-verification needed.

  No downloadable-weights license is represented for this API offering.

  • GPT-5.6 Sol specifications ↗OpenAI · provider-authored · checked Sep 13, 2026