Granite 4.2 3B vs GPT-4o

This comparison does not currently contain a protocol-matched coding benchmark for both Granite 4.2 3B and GPT-4o, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.

Granite 4.2 3B is $0.030 and GPT-4o is $1.25 per million tokens, so Granite 4.2 3B is cheaper on this metric. Granite 4.2 3B is $0.12 and GPT-4o is $5.00 per million tokens, so Granite 4.2 3B is cheaper on this metric.

Granite 4.2 3B has the larger sourced context window. Granite 4.2 3B supports 131K and GPT-4o supports 128K.

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

Granite 4.2 3B is the only model in this pair currently marked as self-hostable. Granite 4.2 3B is open weight; GPT-4o is not marked open weight.

Granite 4.2 3B is not documented with image input; GPT-4o is documented with image input. This reflects supported input modalities, not vision quality.

Neither has a larger sourced maximum output. Granite 4.2 3B is — and GPT-4o is 16K.

Granite 4.2 3B: reasoning and tool calling. GPT-4o: tool calling and image input. Feature support does not establish relative quality.

Granite 4.2 3B has 1 sourced provider route; GPT-4o has 2, so GPT-4o 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.