A.X series vs GPT-5.4

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

Benchmark data for one or both models is coming soon. This page currently shows metadata and pricing where BenchLM has it, and score-level comparisons will populate as public benchmark results land.

BenchLM does not have sourced benchmark coverage for A.X series yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.

GPT-5.4 has the larger context window at 1.05M, compared with 64K for A.X series.

Quick Verdict

Benchmark data for A.X series and GPT-5.4 is coming soon on BenchLM.

Agentic

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
Terminal-Bench 2.0
75.1%
Coming soon
BrowseComp
82.7%
Coming soon
OSWorld-Verified
75%
Coming soon
MCP Atlas
67.2%
Coming soon
Toolathlon
54.6%
Coming soon
tau2-bench
98.9%

Coding

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
HumanEval
95%
Coming soon
SWE-bench Verified
84%
Coming soon
LiveCodeBench
84%
Coming soon
SWE-bench Pro
57.7%

Multimodal & Grounded

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
MMMU-Pro
81.2%
Coming soon
OfficeQA Pro
96%
Coming soon
MMMU-Pro w/ Python
81.5%
Coming soon
OmniDocBench 1.5
0.1090

Reasoning

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
MuSR
94%
Coming soon
BBH
97%
Coming soon
LongBench v2
95%
Coming soon
MRCRv2
97%
Coming soon
MRCR v2 64K-128K
86%
Coming soon
MRCR v2 128K-256K
79.3%
Coming soon
Graphwalks BFS 128K
93.1%
Coming soon
Graphwalks Parents 128K
89.8%
Coming soon
ARC-AGI-2
73.3%

Knowledge

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
GPQA
92.8%
Coming soon
SuperGPQA
96%
Coming soon
MMLU-Pro
93%
Coming soon
HLE
48%
Coming soon
FrontierScience
91%
Coming soon
HLE w/o tools
39.8%
Coming soon
SimpleQA
97%

Instruction Following

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
IFEval
96%

Multilingual

Coming soon

Comparable scores for this category are coming soon. One or both models do not have sourced results here yet.

Coming soon
MMLU-ProX
94%

Mathematics

Coming soon

Benchmark data for this category is coming soon.

Frequently Asked Questions

Can I compare A.X series and GPT-5.4 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.

Why does this comparison show “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.

What data is available for A.X series and GPT-5.4 today?

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.

Last updated: March 18, 2026

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