G
GPT-5.3
stablePositive
vs
competes with (1)
G
Gemini 3 Flash
stablePositive
Coverage (30d)
15vs4
This Week
3vs1
Evidence
2 articles
Relationships
1

Timeline

Gemini 3 Flash2026-03-29

Research revealed its actual API cost is 22% higher than GPT-5.2 despite a 78% cheaper list price.

GPT-5.32026-03-26

Achieved 100% resident identification accuracy in a safety evaluation for a care home smart speaker system.

GPT-5.32026-03-07

Released as OpenAI's most capable frontier model with unified coding, reasoning, and computer operation capabilities

GPT-5.32026-03-06

Demonstrated surpassing human baselines on OSWorld benchmark with 75% score

GPT-5.32026-03-05

OpenAI releases GPT-5.4 with native computer use, tool search, and 1M token context window

GPT-5.32026-03-01

Expected to follow shortly after DeepSeek v4 release

GPT-5.32026-02-28

Identified as experiencing up to 33% accuracy degradation in extended conversations according to new research

Ecosystem

GPT-5.3

developed byOpenAI
developedOpenAI5 src
competes withClaude Sonnet 4.61 src
usesGPT-5.3-Codex1 src
usesGDPval1 src
usesPlaywright1 src

Gemini 3 Flash

No mapped relationships

Benchmarks

gpqa
GPT-5.392
Gemini 3 Flash
swe bench pro
GPT-5.356.8
Gemini 3 Flash
mmlu pro
GPT-5.3
Gemini 3 Flash88.6
arena elo
GPT-5.3
Gemini 3 Flash1473

Evidence (2 articles)

Related Comparisons

GPT-5.3 vs Gemini 3 Flash — AI Comparison 2026 | gentic.news