gpt-5.6-terra

GPT-5.6 Terra — priced by OpenAI.

Jurisdiction US
Context window 1,050,000 tokens
Provider OpenAI
Tiers priced 12

Published tiers

What the most recent complete run published for this model, one row per priced tier, each with the source it was read from.

Tier	Input USD/1M	Output USD/1M	Last read	Read from	Flags
batch	1	6	just now	OpenAI API pricing (docs)	confirmedcorroborated
cache_hit	0.2	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedcorroborated
cache_hit:batch	0.1	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedcorroborated
cache_hit:flex	0.1	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedsingle source
cache_hit:priority	0.4	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedsingle source
cache_write	2.5	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedcorroborated
cache_write:batch	1.25	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedsingle source
cache_write:flex	1.25	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedsingle source
cache_write:priority	5	n/a, not applicable: this tier prices input tokens only and has no output side	just now	OpenAI API pricing (docs)	confirmedsingle source
flat	2	12	just now	OpenAI API pricing (docs)	confirmedcorroborated
flat:flex	1	6	just now	OpenAI API pricing (docs)	confirmedsingle source
flat:priority	4	24	just now	OpenAI API pricing (docs)	confirmedsingle source

This model on the price scale0.1 to 24 across 16 published values

The same six decades as the front page, so a price is in the same place here as it is anywhere else on this site. The two marks in the accent colour are this model’s cheapest and dearest published values.

Price history

Every distinct value this price has taken, oldest first — what the price did, not how often we happened to look. Rows marked backfill came from a public git history of a third-party pricing file and were never verified by us; they extend the series backwards and are flagged rather than hidden.

batch

4 distinct values

Held steady78 days — the value published now has been observed to hold for 78 days, which is 100% of the longest run on this page.

inputoutput1 window nobody looked inhorizontal axis is time

Input low 1 · high 1.25 high from backfill
Output low 6 · high 7.5 high from backfill
Observed 2026-07-09 18:51Zto 2026-07-31 04:46Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-07-09 18:51Z	2026-07-09 18:51Z	1.25	7.5	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 20:08Z	2026-07-30 20:08Z	1	6	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 23:03Z	2026-07-30 23:03Z	1.25	7.5	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-31 04:46Z	2026-10-17 12:00Z	1	6	74	OpenAI API pricing (docs)	2026-10-17 12:00Z

cache_hit

6 distinct values

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

inputoutput2 windows nobody looked inhorizontal axis is time

Input low 0.1 · high 0.25 high from backfill
Observed 2026-07-09 18:51Zto 2026-08-16 04:15Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-07-09 18:51Z	2026-07-09 18:51Z	0.25	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 20:08Z	2026-07-30 20:08Z	0.2	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 23:03Z	2026-07-30 23:03Z	0.25	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-31 04:46Z	2026-07-31 04:46Z	0.2	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-08-15 23:13Z	2026-08-16 01:25Z	0.1	n/a, not applicable: this tier prices input tokens only and has no output side	5	OpenRouter models API	2026-08-16 01:25Z
2026-08-16 04:15Z	2026-10-17 12:00Z	0.2	n/a, not applicable: this tier prices input tokens only and has no output side	68	OpenAI API pricing (docs)	2026-10-17 12:00Z

cache_hit:batch

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady63 days — the value published now has been observed to hold for 63 days, which is 80% of the longest run on this page.

Input 0.1
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-15 23:13Z
Last seen 2026-10-17 12:00Z
Reads 73
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

cache_hit:flex

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

Input 0.1
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-16 04:15Z
Last seen 2026-10-17 12:00Z
Reads 68
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

cache_hit:priority

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

Input 0.4
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-16 04:15Z
Last seen 2026-10-17 12:00Z
Reads 68
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

cache_write

6 distinct values

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

inputoutput2 windows nobody looked inhorizontal axis is time

Input low 1.25 · high 3.125 high from backfill
Observed 2026-07-09 18:51Zto 2026-08-16 04:15Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-07-09 18:51Z	2026-07-09 18:51Z	3.125	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 20:08Z	2026-07-30 20:08Z	2.5	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 23:03Z	2026-07-30 23:03Z	3.125	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-31 04:46Z	2026-07-31 04:46Z	2.5	n/a, not applicable: this tier prices input tokens only and has no output side	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-08-15 23:13Z	2026-08-16 01:25Z	1.25	n/a, not applicable: this tier prices input tokens only and has no output side	5	OpenRouter models API	2026-08-16 01:25Z
2026-08-16 04:15Z	2026-10-17 12:00Z	2.5	n/a, not applicable: this tier prices input tokens only and has no output side	68	OpenAI API pricing (docs)	2026-10-17 12:00Z

cache_write:batch

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

Input 1.25
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-16 04:15Z
Last seen 2026-10-17 12:00Z
Reads 68
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

cache_write:flex

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

Input 1.25
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-16 04:15Z
Last seen 2026-10-17 12:00Z
Reads 68
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

cache_write:priority

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

Input 5
Output n/a, not applicable: this tier prices input tokens only and has no output side
First seen 2026-08-16 04:15Z
Last seen 2026-10-17 12:00Z
Reads 68
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

flat

6 distinct values

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

inputoutput2 windows nobody looked inhorizontal axis is time

Input low 1 · high 2.5 high from backfill
Output low 6 · high 15 high from backfill
Observed 2026-07-09 18:51Zto 2026-08-16 04:15Z

First seen	Last seen	Input USD/1M	Output USD/1M	Reads	Source	Last read	Flags
2026-07-09 18:51Z	2026-07-09 18:51Z	2.5	15	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 20:08Z	2026-07-30 20:08Z	2	12	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-30 23:03Z	2026-07-30 23:03Z	2.5	15	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-07-31 04:46Z	2026-07-31 04:46Z	2	12	1	LiteLLM model_prices_and_context_window.json (git history)	never	backfillunconfirmed
2026-08-15 23:13Z	2026-08-16 01:25Z	1	6	5	OpenRouter models API	2026-08-16 01:25Z
2026-08-16 04:15Z	2026-10-17 12:00Z	2	12	68	OpenAI API pricing (docs)	2026-10-17 12:00Z

flat:flex

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

Input 1
Output 6
First seen 2026-08-16 04:15Z
Last seen 2026-10-17 12:00Z
Reads 68
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

flat:priority

1 distinct value

One value across the whole archive: this price has not moved in anything we have observed.

Held steady62 days — the value published now has been observed to hold for 62 days, which is 80% of the longest run on this page.

Input 4
Output 24
First seen 2026-08-16 04:15Z
Last seen 2026-10-17 12:00Z
Reads 68
Last read 2026-10-17 12:00Z
Source OpenAI API pricing (docs)

Provenance

Read by openai_astro_props from OpenAI API pricing (docs). Each row above links to the exact page its number came from. The vendor's page is authoritative: if it and this page disagree, the vendor is right and we are wrong.