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GPT-6.1 Terra vs Hy3 preview

Published LiveBench scores across all seven categories, live list pricing, context windows, and the measured cost of a point of capability — for both models, side by side.

OpenRouter + LiveBenchAll comparisonsFull leaderboard

Hy3 preview is the cheaper of the two; neither can be ranked on quality here.

Hy3 preview does not have a published LiveBench run, so this comparison covers price, context and declared capabilities only. A missing score means "not evaluated", not "worse" — the right way to separate these two is an eval on your own workload.

openai

GPT-6.1 Terra

Blended / 1M
$2.00
Context
1.1M
Released
Oct 26, 2026
Overall score
77.8
reasoningtool callingfile inputimage inputprompt caching

tencent

Hy3 preview

Blended / 1M
$0.285
Context
262K
Released
Apr 22, 2026
Overall score
Not evaluated
reasoningtool callingprompt caching

Specs and pricing

MetricGPT-6.1 TerraHy3 preview
LiveBench overall

Weighted mean of the seven LiveBench category scores, 0–100. Higher is better.

77.8—
Cost per point

Measured benchmark spend divided by overall score — dollars per point of capability.

$0.0067—
Blended price / 1M

3:1 input:output mix, the usual shape of production traffic.

$2.00$0.285win
Input price / 1M$1.00$0.180win
Output price / 1M$5.00$0.600win
Cached input / 1M

Price of an input token served from the prompt cache, where the provider publishes one.

$0.050win$0.060
Context window1.1Mwin262K
Max output tokens128K236Kwin

Benchmarks by category

An overall score averages away the thing you probably care about. These are the seven LiveBench categories scored separately — GPT-6.1 Terra on top, Hy3 preview below, both out of 100.

Long-horizon agentic
48.6
—
Coding
94.3
—
Reasoning
88.7
—
Browser
93.1
—
Data analysis
82.3
—
Research
73.9
—
Documents & design
82.3
—

What each one costs to run

Per-token prices are hard to feel. These are monthly list costs for both models across five workload shapes, using each provider's published cached-input rate where there is one.

WorkloadGPT-6.1 TerraHy3 preview
Support chatbot

1.2K in / 400 out × 200K requests

$571.60/mo$82.56/mo
RAG assistant

8K in / 600 out × 100K requests

$720.00/mo$132.00/mo
Coding agent

40K in / 4K out × 20K requests

$668.00/mo$124.80/mo
Document extraction

20K in / 1.5K out × 50K requests

$1,328/mo$219.00/mo
Bulk classification

500 in / 20 out × 5M requests

$2,525/mo$450.00/mo
Run these two through the cost calculator

Which should you pick?

You need to fit large documents in one call

GPT-6.1 Terra

Wider context window — 1.1M against 262K.

You are cost-constrained

Hy3 preview

Cheaper on blended list price at $0.285 per million tokens.

GPT-6.1 Terra vs Hy3 preview FAQ

Which is better, GPT-6.1 Terra or Hy3 preview?

Hy3 preview is the cheaper of the two; neither can be ranked on quality here. Hy3 preview does not have a published LiveBench run, so this comparison covers price, context and declared capabilities only. A missing score means "not evaluated", not "worse" — the right way to separate these two is an eval on your own workload.

Is GPT-6.1 Terra cheaper than Hy3 preview?

Hy3 preview is cheaper. On a 3:1 input:output blend, GPT-6.1 Terra lists at $2.00 per million tokens and Hy3 preview at $0.285 — Hy3 preview is 7.0× cheaper. Input and output are priced separately — GPT-6.1 Terra charges $1.00 in and $5.00 out, Hy3 preview charges $0.180 and $0.600 — so the model that looks cheaper flips depending on how output-heavy your workload is.

Does GPT-6.1 Terra or Hy3 preview have a bigger context window?

GPT-6.1 Terra has the larger context window: 1.1M for GPT-6.1 Terra against 262K for Hy3 preview. Note that a window you can fill is not a window you should fill — retrieval quality usually degrades well before the limit, and you pay for every token you put in it.

Do GPT-6.1 Terra and Hy3 preview support prompt caching?

Both publish a cached-input rate: $0.050 per million for GPT-6.1 Terra and $0.060 for Hy3 preview, against full input rates of $1.00 and $0.180. On a workload with a long stable prefix — a system prompt, a tool schema, a retrieved corpus — that changes the economics more than the headline price does.

Related comparisons

How these numbers are produced

  • Price — provider list price from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
  • Scores — LiveBench release 2026-10-25, using their own category map. Each model shows its strongest published run. A blank means “not evaluated”, never “bad”.
  • Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.
  • “Win” — awarded only past a threshold: one full point on a benchmark score, 10% on a price, 25% on a context window. Anything tighter reports as a tie, because effort settings alone move a LiveBench score by more than that.

Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.