OpenAI reports GPT-5.4 results including 83.0% on GDPval and 87.3% on SpreadsheetBench, with long-context and tool-search boundaries.
OpenAI Newsroom · Read evidenceGPT-5.4 · Reviews and evidence
Which GPT-5.4 conclusions hold up?
Browse public evaluations by topic, source identity, and evidence type. Different versions, tiers, and harnesses are not treated as directly comparable.
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Editorial takeaways
Editorial takeaways
With one one-shot atomic-clock prompt, GPT-5.4 looked best but synchronization drifted; the article calls this a single-task observation.
Thomas Wiegold Blog · Read evidenceA four-day Reddit discussion reports GPT-5.4 helping with review and multi-step execution, alongside forgotten constraints, excessive calls, and xhigh cost.
Reddit r/AIAgents · Read evidenceFull reviews and related reading
Selected evidence
OfficialVendor report
GPT-5.4: OpenAI's Official Professional Work and Agent Benchmark
OpenAI reports GPT-5.4 results including 83.0% on GDPval and 87.3% on SpreadsheetBench, with long-context and tool-search boundaries.
SourceOpenAI Newsroom
Published2026-03-05
Collected2026-09-20
Unverified: the original source could not be rechecked.
- Condition
- Model/version follows the source; reopened 2026-09-20.
- Condition
- Task, harness, and sample follow the source; undisclosed fields remain unknown.
Media / benchmarkIndependent measurement
GPT-5.4: A Four-Model Comparison of Atomic Clock Applications
With one one-shot atomic-clock prompt, GPT-5.4 looked best but synchronization drifted; the article calls this a single-task observation.
SourceThomas Wiegold Blog
Published2026-03-18
Collected2026-09-20
Unverified: the original source could not be rechecked.
- Condition
- Model/version follows the source; reopened 2026-09-20.
- Condition
- Task, harness, and sample follow the source; undisclosed fields remain unknown.
CommunityPersonal experience
GPT-5.4: Reddit AI Agents — Multi-step Agents and Model Routing Experience
A four-day Reddit discussion reports GPT-5.4 helping with review and multi-step execution, alongside forgotten constraints, excessive calls, and xhigh cost.
SourceReddit r/AIAgents
PublishedUnknown
Collected2026-09-20
Unverified: the original source could not be rechecked.
- Condition
- Model/version follows the source; reopened 2026-09-20.
- Condition
- Task, harness, and sample follow the source; undisclosed fields remain unknown.
All sources
All sources
OfficialVendor report
GPT-5.4: OpenAI's Official Professional Work and Agent Benchmark
OpenAI reports GPT-5.4 results including 83.0% on GDPval and 87.3% on SpreadsheetBench, with long-context and tool-search boundaries.
SourceOpenAI Newsroom
Published2026-03-05
Collected2026-09-20
Unverified: the original source could not be rechecked.
- Condition
- Model/version follows the source; reopened 2026-09-20.
- Condition
- Task, harness, and sample follow the source; undisclosed fields remain unknown.
Media / benchmarkIndependent measurement
GPT-5.4: A Four-Model Comparison of Atomic Clock Applications
With one one-shot atomic-clock prompt, GPT-5.4 looked best but synchronization drifted; the article calls this a single-task observation.
SourceThomas Wiegold Blog
Published2026-03-18
Collected2026-09-20
Unverified: the original source could not be rechecked.
- Condition
- Model/version follows the source; reopened 2026-09-20.
- Condition
- Task, harness, and sample follow the source; undisclosed fields remain unknown.
CommunityPersonal experience
GPT-5.4: Reddit AI Agents — Multi-step Agents and Model Routing Experience
A four-day Reddit discussion reports GPT-5.4 helping with review and multi-step execution, alongside forgotten constraints, excessive calls, and xhigh cost.
SourceReddit r/AIAgents
PublishedUnknown
Collected2026-09-20
Unverified: the original source could not be rechecked.
- Condition
- Model/version follows the source; reopened 2026-09-20.
- Condition
- Task, harness, and sample follow the source; undisclosed fields remain unknown.
GPT-5.4
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