Head-to-head comparison across 0benchmark categories. Overall scores shown here use BenchLM's provisional ranking lane.
GPT-5.3 Instant
--
GPT-5.4
89
Verified leaderboard positions: GPT-5.3 Instant unranked · GPT-5.4 #12
Benchmark data for GPT-5.3 Instant and GPT-5.4 is coming soon on BenchLM.
GPT-5.3 Instant
GPT-5.4
$1.75 / $14
$2.5 / $15
N/A
74 t/s
N/A
151.79s
400K
1.05M
Benchmark data for GPT-5.3 Instant and GPT-5.4 is coming soon on BenchLM.
BenchLM does not have sourced benchmark coverage for GPT-5.3 Instant yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.
GPT-5.4 is priced at $2.50 input / $15.00 output per 1M tokens, versus $1.75 input / $14.00 output per 1M tokens for GPT-5.3 Instant. GPT-5.4 has the larger context window at 1.05M, compared with 400K for GPT-5.3 Instant.
Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.
BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.
GPT-5.3 Instant: $1.75 input / $14.00 output per 1M tokens GPT-5.4: $2.50 input / $15.00 output per 1M tokens Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.
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