GPT-5.6 Terra
GPT-5.6 TerraAlternatives?
CheaperGemini 4 Argonunstated+75%-11%*$2 / $10Context: 1.05M → 1M+3
BetterDeepSeek V4 Pro 0813maxOpen+22%-52%$0.67Context: 1.05M → 1M+6CheaperGemini 3.8 Flashunstated+73%-67%*$0.75 / $3.75Context: 1.05M → 1M+2CheaperGPT-6.1 Solmax+71%-48%$0.72Remove unsupported parameters+5CheaperGemini 3 Flash Previewhigh+55%-75%$0.50 / $3Context: 1.05M → 1MGemini 4 Argonunstated+75%-11%*$2 / $10Context: 1.05M → 1M+3Gemini 3.8 Flashunstated+73%-67%*$0.75 / $3.75Context: 1.05M → 1M+2GPT-6.1 Solmax+71%-48%$0.72Remove unsupported parameters+5Gemini 3 Flash Previewhigh+55%-75%$0.50 / $3Context: 1.05M → 1MGPT-6 Solunstated+49%-11%$2 / $10DeepSeek V4 Pro 0813maxOpen+22%-52%$0.67Context: 1.05M → 1M+6GPT-6.1 Solmax+71%-48%$0.72Remove unsupported parameters+5
Grok 4.5high+12%-37%$0.88Context: 1.05M → 500K
Muse Spark 1.2xhigh+40%-30%$0.97Context: 1.05M → 1M+2GPT-6 Solmax+41%-25%$1.04DeepSeek V4 Pro 0813maxOpen+22%-52%$0.67Context: 1.05M → 1M+6
Kimi K3maxOpen+17%+43%$2.00Context: 1.05M → 1M+4
GLM 5.3maxOpen-5%+43%$2.01Context: 1.05M → 1M+5
Qwen3 235B A22B Thinking 2507unstatedOpen-6%-83%$0.23 / $2.30Context: 1.05M → 262K+2TInklingxhighOpen-7%-62%$0.95 / $4.05Context: 1.05M → 256K+1GPT-6 Astramax+75%+133%$3.26Monitoring can return HTTP 403+2GPT-6.1 Solmax+71%-48%$0.72Remove unsupported parameters+5GPT-5.6 Solmax+61%+42%$1.99GPT-5.5xhigh+46%+88%$2.63Prompts with >272K input tokensGPT-6 Solmax+41%-25%$1.04o3unstated+21%—$2 / $8Context: 1.05M → 200KGPT-5 (2025-08-07)high+16%—$1.25 / $10Context: 1.05M → 400Ko3 (2025-04-16)high+14%—$2 / $8Context: 1.05M → 200KAll OpenAI models →Benchmarks
in Chat & KnowledgeWatch out 1
Prompts with >272K input tokens›
Above 272K input tokens, input costs 2× and output 1.5× for the full request. Source ↗
FAQ
How much does GPT-5.6 Terra cost?›
$2 per 1M input tokens and $12 per 1M output tokens; cached input $0.20 per 1M. A typical benchmark task costs about $1.40 at max effort.
Is GPT-5.6 Terra free to use?›
There is no free API; the cheapest paid price is $2 per 1M input tokens.
How good is GPT-5.6 Terra, and what is it best at?›
#32 of 334 in Chat & Knowledge, #15 of 132 in Coding, #20 of 133 in Agents & Tool Use, #46 of 195 in Writing & Language, #14 of 124 in Vision & Documents. Strongest at: Coding, Agents & work tasks, Tool calling, Reasoning, Science, Long context, Knowledge, Instructions, Vision.
Is GPT-5.6 Terra better than GPT-3.5 Turbo?›
On SimpleQA Verified v1, GPT-5.6 Terra scores 43.2 vs 11.2 — higher.
How can I use GPT-5.6 Terra?›
Through the API of Amazon Bedrock, Azure, OpenAI.
What is the context window of GPT-5.6 Terra?›
1.05M tokens, with up to 128K output tokens.
When was GPT-5.6 Terra released? Is there a newer version?›
Released 2026-07-09. It is the current version in its line.
Is GPT-5.6 Terra open source?›
No, GPT-5.6 Terra is a closed model available through an API. The closest open-weights option here is DeepSeek V4 Pro 0813.
Can GPT-5.6 Terra read images?›
It accepts text and images, PDF files as input.
What is GPT-5.6 Terra?›
GPT-5.6 Terra is a closed language model from OpenAI, released Jul 2026, the successor to GPT-3.5 Turbo.
What are the best alternatives to GPT-5.6 Terra?›
Gemini 4 Argon (cheaper), DeepSeek V4 Pro 0813 (better).