Claude Opus 5.5 vs UnslopNemo 12B

Price, context window & benchmark comparison

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Claude Opus 5.5

Anthropic
$4.00 / $20.00
Input / Output · per 1M tokens
VS
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UnslopNemo 12B

Thedrummer
$0.40 / $0.40
Input / Output · per 1M tokens
Compare different models
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Verdict: UnslopNemo 12B is 20.0× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix. UnslopNemo 12B has the larger context window (1M vs 1M).
Claude Opus 5.5UnslopNemo 12B
Input price / 1M$4.00$0.40
Output price / 1M$20.00$0.40
Blended price (3:1)$8.00$0.40
Cached input / 1M$0.20
Context window1M1M
Max output128K819K
Intelligence index57.6
Coding index
Providers11
Best provider uptime (30m)100.0%
Vision inputYesNo
ReasoningYesNo
Tool callingYesNo
Released2026-09-222024-11-08
Retirement

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FAQ

Which is cheaper, Claude Opus 5.5 or UnslopNemo 12B?

UnslopNemo 12B is 20.0× cheaper than Claude Opus 5.5 on a typical 3:1 input/output mix.

Claude Opus 5.5 vs UnslopNemo 12B: which has a bigger context window?

Claude Opus 5.5: 1,000,000 tokens. UnslopNemo 12B: 1,024,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Opus 5.5 ≈ $18,000, UnslopNemo 12B ≈ $1,000.

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