GPT-6.1 Terra Pro vs Ternary Bonsai 2 9B

Price, context window & benchmark comparison

OpenAI

GPT-6.1 Terra Pro

OpenAI
$1.00 / $5.00
Input / Output · per 1M tokens
VS
Prism Ml

Ternary Bonsai 2 9B

Prism Ml
$0.08 / $0.13
Input / Output · per 1M tokens
Compare different models
OpenAI
Prism Ml
Verdict: Ternary Bonsai 2 9B is 21.6× cheaper than GPT-6.1 Terra Pro on a typical 3:1 input/output mix. GPT-6.1 Terra Pro has the larger context window (1.1M vs 262K).
GPT-6.1 Terra ProTernary Bonsai 2 9B
Input price / 1M$1.00$0.08
Output price / 1M$5.00$0.13
Blended price (3:1)$2.00$0.0925
Cached input / 1M$0.05$0.04
Context window1.1M262K
Max output128K66K
Intelligence index——
Coding index——
Providers4—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-10-262026-10-16
Retirement——

Cost calculator

FAQ

Which is cheaper, GPT-6.1 Terra Pro or Ternary Bonsai 2 9B?

Ternary Bonsai 2 9B is 21.6× cheaper than GPT-6.1 Terra Pro on a typical 3:1 input/output mix.

GPT-6.1 Terra Pro vs Ternary Bonsai 2 9B: which has a bigger context window?

GPT-6.1 Terra Pro: 1,050,000 tokens. Ternary Bonsai 2 9B: 262,144 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: GPT-6.1 Terra Pro ≈ $4,500, Ternary Bonsai 2 9B ≈ $225.00.

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