Humanlike AIThe model index

Side by side

GPT-5 vs GPT-5.6

Up to 4 models, normalised onto the same cost basis and scored through the lens you pick.

OpenAI logo
GPT-5
OpenAI
OpenAI logo
GPT-5.6
OpenAI
Cost of talking
Per minute$0.0083$0.0083Estimate
Per hour$0.499$0.499
30-min interview$0.249$0.249
List price$1.25 / $10 per 1MPublished$1.25 / $10 per 1MEstimate
Recruitment fit
Overall78/10086/100
VerdictStill capable for screening work, but 5.6 does the same job cheaper and faster.The pragmatic hiring default — Terra handles almost every screening and drafting task at a fraction of frontier cost.
Best for
Existing pipelines already pinned to GPT-5
CV screening at volumeCandidate Q&AInterview note summarisation
Watch out for
  • Superseded — no reason to start here on a new build
  • Sol is not a substitute for a human on final decisions
  • Public benchmark coverage for this alias is thin
Capabilities
Modalitiestexttext, audio
Context window400K400K
VariantsStandard, Mini, NanoSol, Terra, Luna
On HumanLikeNot yetCoworker, Live Chat
HumanLike evals
Default Coworker chat model—LunaOur eval
Published benchmarks
MMLU-Pro—TBDEstimate

Cost per hour assumes 150 wpm and a 40% AI speaking share. Hover a figure for its full derivation.