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GPT-5.6 Terra

by OpenAI

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier.

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Our verdict

Not reviewed yet

We have not reviewed GPT-5.6 Terra yet

No one at Enterprise DNA has checked this listing against its sources. The description comes from public listings gathered automatically. Any fact below shows where it came from and when it was last checked.

How we review records

From the listing

About GPT-5.6 Terra

GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier.

Notes

GPT-5.6 Terra is listed in the EDNA Models directory from the OpenRouter catalogue.

Key facts

What we have checked

Input price
$2.00 per million tokens
Checked OpenRouter models API
Output price
$12.00 per million tokens
Checked OpenRouter models API
Price on amazon-bedrock
$0.220 per million cached input tokens
Checked OpenRouter models API
Price on amazon-bedrock
$2.20 per million input tokens
Checked OpenRouter models API
Price on amazon-bedrock
$13.20 per million output tokens
Checked OpenRouter models API
Price on azure
$0.200 per million cached input tokens
Checked OpenRouter models API
Price on azure
$2.00 per million input tokens
Checked OpenRouter models API
Price on azure
$12.00 per million output tokens
Checked OpenRouter models API
Price on openai
$0.100 per million cached input tokens
Checked OpenRouter models API
Gpqa diamond
93.3% (for 9 July 2026)
Checked Epoch AI (CC BY 4.0)
Frontiermath tiers 1 3 v2 private
86% (for 9 July 2026)
Checked Epoch AI (CC BY 4.0)
Simpleqa verified
43.2% (for 9 July 2026)
Checked Epoch AI (CC BY 4.0)

Each value shows when we last confirmed it and where it came from. Values we have not confirmed are left out, never guessed.

API access

How to call it

Call via OpenRouter with model id `openai/gpt-5.6-terra`.

  • openrouter · openai/gpt-5.6-terra · Docs

OpenRouter id: openai/gpt-5.6-terra

Price

What GPT-5.6 Terra costs, over time

Input price

$2.00 to $2.00

US dollars per million input tokens. 3 Sept 2026 to 10 Nov 2026, 44 days.

Source: OpenRouter models API. Checked .

Output price

$12.00 to $12.00

US dollars per million output tokens. 3 Sept 2026 to 10 Nov 2026, 44 days.

Source: OpenRouter models API. Checked .

Prices by host

HostPriceOver timeChecked
amazon-bedrockCached input$0.220 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
amazon-bedrockInput$2.20 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
amazon-bedrockOutput$13.20 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
azureCached input$0.200 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
azureInput$2.00 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
azureOutput$12.00 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API
openaiCached input$0.100 per million cached input tokensSince 24 Oct 2026No change recordedOpenRouter models API
openaiInput$1.00 per million input tokensSince 24 Oct 2026No change recordedOpenRouter models API
openaiOutput$6.00 per million output tokensSince 24 Oct 2026No change recordedOpenRouter models API

Usage

How much GPT-5.6 Terra is used

Tokens served a day

53.8B to 18.8B

tokens a day on OpenRouter. 19 Sept 2026 to 10 Nov 2026, 53 readings.

Source: OpenRouter model activity (748 of 748 series). Checked .

Scores

How GPT-5.6 Terra scores

Each score comes from the named source and shows when we last confirmed it. A flag means the score needs care.

ScoreValueSourceChecked
Artificial Analysis Intelligence Index32.3indexAs of 10 Nov 2026Artificial Analysis via OpenRouter
Artificial Analysis Coding Index76.7indexAs of 10 Nov 2026Artificial Analysis via OpenRouter
Artificial Analysis Agentic Index43.2indexAs of 10 Nov 2026Artificial Analysis via OpenRouter
LMArena text rating (Elo)1,449EloAs of 10 Nov 2026LMArena (CC-BY-4.0), published 2026-11-09
LMArena web development rating (Elo)1,520EloAs of 10 Nov 2026LMArena (CC-BY-4.0), published 2026-11-09
LMArena vision rating (Elo)1,269EloAs of 10 Nov 2026LMArena (CC-BY-4.0), published 2026-11-09
Apex agents (best-across-versions)58.2percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Arc agi (best-across-versions)96.5percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Arc agi 2 (best-across-versions)83.9percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Balrog (best-across-versions)53.2percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Chess puzzles (best-across-versions)47percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Dtbench (best-across-versions)93.3percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Show 13 more scores
ScoreValueSourceChecked
Frontiercode (best-across-versions)41.3percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Frontiermath tier 4 v2 private (best-across-versions)70.7percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Frontiermath tiers 1 3 v2 private (best-across-versions)86percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Furniture assembly (best-across-versions)54.2percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Gpqa diamond (best-across-versions)93.3percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Lmca (best-across-versions)55percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Mystery game puzzles (best-across-versions)35percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Otis mock aime 2024 2025 (best-across-versions)Saturated99.7percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Proofbench (best-across-versions)74percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Simplebench (best-across-versions)48.9percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Simpleqa verified (best-across-versions)43.2percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Surface evolver bench (best-across-versions)83.8percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Weirdml (best-across-versions)78.3percentAs of 9 July 2026Epoch AI (CC BY 4.0)
Saturated
Top models score close to the maximum, so this test no longer separates them.

Sources

Where this comes from

A source shows what was published when we checked it. It does not certify security, performance or a working installation. Read our method.

Changelog

What changed

  1. Price changed

    output per mtok: 15 to 12

    Source: OpenRouter models API

  2. Price changed

    input per mtok: 2.5 to 2

    Source: OpenRouter models API

USAGE / OPENROUTER

How much GPT-5.6 Terra is used

Tokens processed through OpenRouter each day. It shows what developers actually run, not every company's private traffic.

Tokens, last 7 days
151B ▼26.2%
Requests, last 7 days
10.3M
Tool calls, last 7 days
4.1M
Intelligence score
32.3
People's vote
1449
Average cost per request
$3.64
Price per million tokens
$2 in · $12 out
0100B200B19 Sept: 53.8B tokens, 1.8M requests20 Sept: 66.9B tokens, 2.1M requests21 Sept: 112B tokens, 3.4M requests22 Sept: 98.7B tokens, 3.2M requests23 Sept: 89.2B tokens, 3.1M requests24 Sept: 76.8B tokens, 2.4M requests25 Sept: 68.9B tokens, 2.6M requests26 Sept: 43.5B tokens, 1.4M requests27 Sept: 49.9B tokens, 1.5M requests28 Sept: 76.4B tokens, 1.9M requests29 Sept: 61.9B tokens, 2.3M requests30 Sept: 47.8B tokens, 2M requests1 Oct: 49.4B tokens, 2.1M requests2 Oct: 66.4B tokens, 2.2M requests3 Oct: 17.4B tokens, 986K requests4 Oct: 25.1B tokens, 1M requests5 Oct: 37.5B tokens, 1.8M requests6 Oct: 36.4B tokens, 1.5M requests7 Oct: 35.5B tokens, 1.5M requests8 Oct: 39.3B tokens, 1.6M requests9 Oct: 33B tokens, 1.4M requests10 Oct: 28.1B tokens, 1.3M requests11 Oct: 24.7B tokens, 1.2M requests12 Oct: 33.3B tokens, 2.1M requests13 Oct: 34.7B tokens, 2.3M requests14 Oct: 43.8B tokens, 1.9M requests15 Oct: 37.5B tokens, 2.1M requests16 Oct: 31.6B tokens, 1.8M requests17 Oct: 20.1B tokens, 1.5M requests18 Oct: 18.7B tokens, 1.1M requests19 Oct: 37.7B tokens, 1.8M requests20 Oct: 33.3B tokens, 1.9M requests21 Oct: 49.1B tokens, 2.5M requests22 Oct: 53.3B tokens, 2.5M requests23 Oct: 38B tokens, 2.5M requests24 Oct: 17.6B tokens, 1.9M requests25 Oct: 41.5B tokens, 1.9M requests26 Oct: 31.3B tokens, 1.6M requests27 Oct: 27.5B tokens, 1.4M requests28 Oct: 28.2B tokens, 1.8M requests29 Oct: 35.9B tokens, 1.8M requests30 Oct: 30.6B tokens, 2.6M requests31 Oct: 23.8B tokens, 1.7M requests1 Nov: 27.5B tokens, 1.4M requests2 Nov: 30.6B tokens, 2.5M requests3 Nov: 28.4B tokens, 1.9M requests4 Nov: 28.1B tokens, 1.8M requests5 Nov: 28.3B tokens, 1.4M requests6 Nov: 20.3B tokens, 1.6M requests7 Nov: 15.8B tokens, 1.2M requests8 Nov: 16.4B tokens, 1.6M requests9 Nov: 23.8B tokens, 1.5M requests10 Nov: 18.8B tokens, 1.3M requests19 Sept3 Oct17 Oct31 Oct10 NovSee where it ranks on the leaderboard →

MODEL FIELD GUIDE / SOURCE EVIDENCE

What you can do with GPT-5.6 Terra.

Listed specifications; no EDNA task evaluation has been run. Sources checked 2026-11-07. Hosting routes and app features can differ.

DeveloperOpenAI
Exact model identifieropenai/gpt-5.6-terra
Inputfile, image, text
Outputtext
Tool calling
Listed support
Structured output
Listed support
Reasoning controls
Listed support
Availability
available
Price basis
token
Licence verification
Check the developer licence; the model name is insufficient
Context length
1.1M tokens
Knowledge cutoff
16 Feb 2026
Developer release date
Not established
First seen in the catalogue
9 Jul 2026
Listed retirement date
Not established
Inspect the sources and their scope
catalogue source ↗

openai/gpt-5.6-terra: listed route capabilities, availability and prices; provider endpoints can differ.

Checked 2026-11-07
openrouter.ai ↗

Source for reasoning controls, first seen, tool calling, context length, input, knowledge cutoff, output, structured output.

Checked 2026-11-07
How to evaluate a model for your work →

FROM SPECIFICATIONS TO YOUR WORK

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Start with a realistic sample. These workflows match the model’s listed capabilities, not a verified result on your task.

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What would it cost?

Pick a common job and how many times a month you run it. Token sizes are our assumption for a typical run, shown under the result.

Working out the cost...

Token prices only. Per-request, image, tool, storage and subscription fees are not included. One token is about three quarters of an English word. Real counts vary by model and language. How tokens are counted ↗

Check the source

Price date: 10 Nov 2026, from OpenRouter models API. Prices are USD API token rates. Your app subscription, uploads, browsing and tools are separate.

Model source & availability ↗

Understand the evidence

Listed capabilities and third-party benchmark scores do not establish Enterprise DNA task-test results. Validate accuracy and total cost on your own sample.

Intelligence Index: 32.3 (2026-11-09) ↗Coding Index: 76.7 (2026-11-09) ↗Agentic Index: 43.2 (2026-11-09) ↗
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