Granite 4.2 30B vs o3

This comparison does not currently contain a protocol-matched coding benchmark for both Granite 4.2 30B and o3, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Granite 4.2 30B is $0.16 and o3 is $1.00 per million tokens, so Granite 4.2 30B is cheaper on this metric. Granite 4.2 30B is $0.65 and o3 is $4.00 per million tokens, so Granite 4.2 30B is cheaper on this metric.

o3 has the larger sourced context window. Granite 4.2 30B supports 131K and o3 supports 200K.

There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.

Granite 4.2 30B is the only model in this pair currently marked as self-hostable. Granite 4.2 30B is open weight; o3 is not marked open weight.

Granite 4.2 30B is not documented with image input; o3 is documented with image input. This reflects supported input modalities, not vision quality.

Neither has a larger sourced maximum output. Granite 4.2 30B is — and o3 is 100K.

Granite 4.2 30B: reasoning and tool calling. o3: reasoning, tool calling, and image input. Feature support does not establish relative quality.

Granite 4.2 30B has 1 sourced provider route; o3 has 2, so o3 has broader tracked availability.

There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.