AI Flash Report

GPT-5.5 vs Granite 4.1 30B: Benchmarks, Pricing & Capabilities Compared

TL;DR — GPT-5.5 wins for reasoning + long-context · Granite 4.1 30B wins for general use.

GPT-5.5 OpenAI
Released
2026-04-23
Context window
922K tokens
Input price
$5.00 / Mtok
Output price
$30.00 / Mtok
Released
2026-04-29
Context window
131K tokens
Input price
$0.00 / Mtok
Output price
$0.00 / Mtok

Benchmark comparison

Benchmark GPT-5.5 Granite 4.1 30B
AA Intelligence Index 60.2 14.7
GPQA Diamond 93.5% 48.1%
HLE 44.3% 4.2%
IF-Bench 75.9% 44.4%
LiveCodeBench Reasoning 74.3% 18.7%
SciCode 56.1% 25.8%
TAU2-bench 93.9% 42.1%
TerminalBench-Hard 60.6% 2.3%

Pricing comparison

Metric GPT-5.5 Granite 4.1 30B
Input ($/Mtok) $5.00 $0.00
Output ($/Mtok) $30.00 $0.00
Cached input ($/Mtok)
Cost per 1M-token roundtrip (1M in + 1M out) $35.00 $0.00

Context window & modalities

Attribute GPT-5.5 Granite 4.1 30B
Context window 922K tokens 131K tokens
Input modalities text, image text
Output modalities text text
Knowledge cutoff

Verdict by use case

Coding
Insufficient data
Basis: SWE-bench

No shared coding benchmark.

Reasoning
→ GPT-5.5
Basis: GPQA Diamond

GPT-5.5 93.5% vs Granite 4.1 30B 48.1% on GPQA Diamond.

Math
Insufficient data
Basis: MATH / AIME

No shared math benchmark.

Long context
→ GPT-5.5
Basis: Context window

GPT-5.5 922K tokens vs Granite 4.1 30B 131K tokens.

Cost
→ Granite 4.1 30B
Basis: Input $/Mtok

GPT-5.5 $5/Mtok vs Granite 4.1 30B $0/Mtok input.

Changelog & releases

GPT-5.5
Released 2026-04-23
Granite 4.1 30B
Released 2026-04-29

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