identity

proprietary
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gpt-5.6-terraOpenAI

from /1M in$1.00openai
context1.1M128K out
best ttft1.83smicrosoft azure ai
price spread2.2x10 endpoints
endpoints
10
regions
9
best tok/s
141
api
chat
released
July 2026
eu routing
available

capabilities 5/8

visionreasoningtoolscachingweb searchjson schemacomputer useimage gen

The same weights cost 2.2x more on microsoft azure ai than on openai. That is what the endpoints table is for.

endpoints

10 / 9 regions
Providers serving gpt-5.6-terra, with pricing and measured performance. Best value in each column is coloured.
#flags
1OpenAIGlobal1.1M$1.00$6.00$0.101.88s73.0no-train
2OpenAIGlobal1.1M$2.00$12.00$0.201.88s73.0no-train
3Microsoft Azure AIeastus21.1M$2.00$12.00$0.201.83s89.0zdr
4Microsoft Azure AIfrancecentral1.1M$2.20$13.20$0.221.83s89.0zdr
5Microsoft Azure AIgermanywestcentral1.1M$2.20$13.20$0.221.83s89.0zdr
6Microsoft Azure AIswedencentral1.1M$2.20$13.20$0.221.83s89.0zdr
7Microsoft Azure AIwesteurope1.1M$2.20$13.20$0.221.83s89.0zdr
8AWS Bedrockus-east-11.1M$2.20$13.20$0.222.19s141.0-zdr
9AWS Bedrockus-east-21.1M$2.20$13.20$0.222.19s141.0-zdr
10AWS Bedrockus-west-21.1M$2.20$13.20$0.222.19s141.0-zdr
provider price, no markupper 1M tokensblank where no qualifying sample

measured

through Nov 2
median
417ms2.19s3.95s08-3109-2811-022.97s2.69s2.19s
hover the plot for weekly values
time to first token per provider: current value, window low and high, and change across the window
providernowlowhighchange
Microsoft Azure AI1.83s712ms3.07s+208%
OpenAI1.88s832ms3.66s+172%
AWS Bedrock2.19s1.59s3.42s+87%

median wait before the first token lands. this is the number a user feels, and it moves with provider load through the day.

Lines are steps: each sample is one week of traffic held flat, not a slide from the week before. Click a name in the key to drop it from the plot. Measured through Nov 2.

benchmarks

artificial analysis

no published benchmark scores for this model

call it

model=
gpt-5.6-terra

requesty routes this id across every provider serving gpt-5.6-terra, picking on price and health and failing over automatically. the id stays valid when a provider changes underneath it

Base url is https://router.requesty.ai/v1 for every id here. One key reaches the whole catalog.

quickstart

openai compatible
main.py
from openai import OpenAI client = OpenAI(    api_key="YOUR_REQUESTY_API_KEY",    base_url="https://router.requesty.ai/v1",) response = client.chat.completions.create(    model="gpt-5.6-terra",    messages=[        {"role": "user", "content": "Explain quantum computing in one paragraph."},    ],) print(response.choices[0].message.content)

Change the base url, use your Requesty key, set the model to any id in the call pane. Existing OpenAI SDK code needs no other edit, and the same key reaches every other model in the catalog, so switching later is a one-parameter change. Browse all models

notes

reference

GPT-5.6 Terra is OpenAI's balanced frontier model for everyday production workloads, delivering near flagship reasoning, coding, and agentic performance at roughly half the cost of the previous generation. It features a 1M+ token context window with support for text and image inputs, server side tool calling, and prompt caching.

questions 7

Which providers serve gpt-5.6-terra?
gpt-5.6-terra is available from 3 providers through Requesty: OpenAI, Microsoft Azure AI, AWS Bedrock. All endpoints share one OpenAI-compatible API and one key, and Requesty fails over between them automatically.
How much does gpt-5.6-terra cost?
Pricing starts at $1.00 per million input tokens and $6.00 per million output tokens on the cheapest provider. Prices vary by provider and region; the table above shows every endpoint. Requesty charges exactly what the upstream provider charges, with no markup.
Is gpt-5.6-terra open weights?
No. gpt-5.6-terra is a proprietary model from OpenAI, served through OpenAI's own API and licensed cloud platforms.
What is the context window of gpt-5.6-terra?
gpt-5.6-terra supports up to 1.1M tokens of context, with up to 128K output tokens per response. Some providers expose a smaller window; check the per-endpoint context column above.
Which provider is fastest for gpt-5.6-terra?
In recent production traffic through Requesty, Microsoft Azure AI had the lowest median time to first token (1.83s) for gpt-5.6-terra. Latency shifts over time, so Requesty's latency-based routing picks the fastest healthy provider per request automatically.
How do I use gpt-5.6-terra with the OpenAI SDK?
Install the OpenAI SDK, set base_url to "https://router.requesty.ai/v1", set your API key to your Requesty key, and set the model to "gpt-5.6-terra" or any endpoint id from the table above. The quickstart section shows Python, JavaScript and cURL snippets.
Should I call gpt-5.6-terra by its managed id or a provider id?
Use the managed id, "gpt-5.6-terra". Requesty picks which of the 3 providers serves each request based on price and health, and fails over when one degrades, so the id keeps working while the routing changes underneath it. There is also an EU-only id, "gpt-5.6-terra@eu", which routes the same way but only through EU-hosted providers. Send a provider id like "openai/gpt-5.6-terra:flex" only when you need one specific deployment and want no failover.

more from openai 6

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modelcontextfrom /Mproviders
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gpt-6.1-sol1.1M$1.002
gpt-6-luna1.1M$0.052
gpt-6-sol1.1M$1.002
gpt-6-astra1.1M$5.002
gpt-5.6-luna1.1M$0.103

route gpt-5.6-terra through one endpoint

One key for 3 providers on this model and 600+ others. No markup on provider prices, automatic failover, caching built in. Weekly aggregates in the measured pane come from production traffic routed through Requesty, one line per provider on a shared axis. Methodology

gpt-5.6-terra3 providers10 endpointsfrom $1.00 /1M inctx 1.1Mttft 1.83sspread 2.2xupdated Nov 2