Compare · ModelsLive · 2 picked · head to head
Gemini 1.5 Flash (May 2024) vs GPT-4o (2024-08-06)
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-4o (2024-08-06) wins on 7/7 benchmarks
GPT-4o (2024-08-06) wins 7 of 7 shared benchmarks. Leads in arena · math · knowledge.
Category leads
arena·GPT-4o (2024-08-06)math·GPT-4o (2024-08-06)knowledge·GPT-4o (2024-08-06)multimodal·GPT-4o (2024-08-06)
Hype vs Reality
Attention vs performance
Gemini 1.5 Flash (May 2024)
#167 by perf·no signal
GPT-4o (2024-08-06)
#237 by perf·no signal
Best value
GPT-4o (2024-08-06)
Gemini 1.5 Flash (May 2024)
n/a
no price
GPT-4o (2024-08-06)
5.7 pts/$
$6.25/M
Vendor risk
Who is behind the model
Google DeepMind
$3.61T·Tier 1
OpenAI
$840.0B·Tier 1
Head to head
7 benchmarks · 2 models
Gemini 1.5 Flash (May 2024)GPT-4o (2024-08-06)
Chatbot Arena Elo · Overall
GPT-4o (2024-08-06) leads by +49.0
Gemini 1.5 Flash (May 2024)
1286.5
GPT-4o (2024-08-06)
1335.5
FrontierMath-2025-02-28-Private
GPT-4o (2024-08-06) leads by +0.3
FrontierMath (Feb 2025) · original research-level math problems created by mathematicians, testing capabilities at the boundary of current AI mathematical reasoning.
Gemini 1.5 Flash (May 2024)
0.0
GPT-4o (2024-08-06)
0.3
GPQA diamond
GPT-4o (2024-08-06) leads by +10.9
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
Gemini 1.5 Flash (May 2024)
21.4
GPT-4o (2024-08-06)
32.3
MATH level 5
GPT-4o (2024-08-06) leads by +28.2
MATH Level 5 · the hardest tier of the MATH benchmark, featuring competition-level problems from AMC, AIME, and Olympiad-style mathematics.
Gemini 1.5 Flash (May 2024)
25.1
GPT-4o (2024-08-06)
53.3
MMLU
GPT-4o (2024-08-06) leads by +8.5
Massive Multitask Language Understanding · 57 subjects spanning STEM, humanities, social sciences, and more. The standard benchmark for broad knowledge.
Gemini 1.5 Flash (May 2024)
70.5
GPT-4o (2024-08-06)
79.1
OTIS Mock AIME 2024-2025
GPT-4o (2024-08-06) leads by +2.5
OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills.
Gemini 1.5 Flash (May 2024)
3.8
GPT-4o (2024-08-06)
6.3
VideoMME
GPT-4o (2024-08-06) leads by +2.1
VideoMME · multimodal benchmark testing video understanding across diverse domains, requiring temporal reasoning and cross-frame comprehension.
Gemini 1.5 Flash (May 2024)
60.4
GPT-4o (2024-08-06)
62.5
Full benchmark table
| Benchmark | Gemini 1.5 Flash (May 2024) | GPT-4o (2024-08-06) |
|---|---|---|
Chatbot Arena Elo · Overall | 1286.5 | 1335.5 |
FrontierMath-2025-02-28-Private FrontierMath (Feb 2025) · original research-level math problems created by mathematicians, testing capabilities at the boundary of current AI mathematical reasoning. | 0.0 | 0.3 |
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 21.4 | 32.3 |
MATH level 5 MATH Level 5 · the hardest tier of the MATH benchmark, featuring competition-level problems from AMC, AIME, and Olympiad-style mathematics. | 25.1 | 53.3 |
MMLU Massive Multitask Language Understanding · 57 subjects spanning STEM, humanities, social sciences, and more. The standard benchmark for broad knowledge. | 70.5 | 79.1 |
OTIS Mock AIME 2024-2025 OTIS Mock AIME 2024-2025 · simulated American Invitational Mathematics Examination problems testing advanced problem-solving skills. | 3.8 | 6.3 |
VideoMME VideoMME · multimodal benchmark testing video understanding across diverse domains, requiring temporal reasoning and cross-frame comprehension. | 60.4 | 62.5 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| n/a | n/a | n/a | n/a | |
| $2.50 | $10.00 | 128K tokens (~64 books) | $43.75 |