GPT-5.6 Terra alternatives

Best GPT-5.6 Terra alternatives

10 models that can stand in for GPT-5.6 Terra, ranked by benchmark score, with what each one does better.

Current Model

GPT-5.6 Terra

Quick picks

The best alternative depends on what you need

Why people switch away from GPT-5.6 Terra, and the model that fits each reason best.

Cheapest alternative

DeepSeek V4.1 Flash

$1.20 per 1M output tokens vs $12

Smartest alternative

GPT-6 Sol

Intelligence score 47.6 vs 42.1

Largest context

GPT-6 Sol

1.05M tokens vs 1.05M

Ranked

Each model is scored against GPT-5.6 Terra. Green means better, red means worse.

GPT-5.6 Terra as the baseline, then the top alternatives scored against it
Model	Input / 1M	Output / 1M	Context	Intelligence	Compare
GPT-5.6 Terra OpenAI	Input / 1M$2	Output / 1M$12	Context1.05M	Intelligence42.1	Reference model
1 GPT-6 Sol OpenAI	Input / 1M$2	Output / 1M$10-17%	Context1.05M	Intelligence47.6+13%	Compare
Why switch:1.2x cheaper outputHigher intelligence scoreNewer release
2 GPT-5.6 Sol OpenAI	Input / 1M$2	Output / 1M$10-17%	Context1.05M	Intelligence47+12%	Compare
Why switch:1.2x cheaper outputHigher intelligence score
3 GLM 5.3 Z.ai	Input / 1M$0.04-98%	Output / 1M$7-42%	Context1.05M0%	Intelligence44.8+6%	Compare
Why switch:1.7x cheaper outputHigher intelligence scoreNewer release
4 Kimi K3 Moonshot AI	Input / 1M$0.90-55%	Output / 1M$14+17%	Context1.05M0%	Intelligence43.6+4%	Compare
Why switch:Higher intelligence scoreAccepts videoNewer release
5 Claude Opus 4.8 Anthropic	Input / 1M$5+150%	Output / 1M$25+108%	Context1M-5%	Intelligence41.8-1%	Compare
6 Gemini 3.8 Flash Google	Input / 1M$0.75-62%	Output / 1M$3.75-69%	Context1.05M0%	Intelligence40.9-3%	Compare
Why switch:3.2x cheaper outputAccepts video and audioNewer release
7 DeepSeek V4.1 Flash DeepSeek	Input / 1M$0.30-85%	Output / 1M$1.20-90%	Context1.05M0%	Intelligence39.5-6%	Compare
Why switch:10x cheaper outputNewer release
8 GPT-5.4 OpenAI	Input / 1M$2.50+25%	Output / 1M$15+25%	Context1.05M	Intelligence39-7%	Compare
9 GPT-5.5 OpenAI	Input / 1M$5+150%	Output / 1M$30+150%	Context1.05M	Intelligence38.4-9%	Compare
10 Claude Sonnet 5 Anthropic	Input / 1M$2	Output / 1M$10-17%	Context1M-5%	Intelligence38.2-9%	Compare
Why switch:1.2x cheaper output

FAQ

What is the best alternative to GPT-5.6 Terra?

GPT-6 Sol from OpenAI ranks first, based on independent benchmark scores. It costs $10 per 1M output tokens, compared with $12 for GPT-5.6 Terra.

Is there a cheaper alternative to GPT-5.6 Terra?

Yes. DeepSeek V4.1 Flash charges $1.20 per 1M output tokens, versus $12 for GPT-5.6 Terra.

Can I try GPT-5.6 Terra and its alternatives at the same time?

Yes. Shortcut Chat sends one prompt to several models at once, so you can compare GPT-5.6 Terra with any of these alternatives on your own tasks.

Send one prompt to GPT-5.6 Terra and its alternatives at the same time, and keep the answer you like best.