Gemini 2.5 Flash Preview vs GPT-4: Benchmarks, Pricing, and Context Window Comparison Gemini 2.5 Flash Preview vs GPT-4 compares provider, context window, token pricing, benchmark performance, and release timeline in one side-by-side view. Use this page to quickly identify which model is a better fit for your production constraints, quality targets, and estimated cost per request.
Verdict Gemini 2.5 Flash Preview has lower listed token pricing, while GPT-4 can still be preferable if benchmark results better match your workload.
Author: Mirai Minds Research Team
Last updated: March 17, 2026
Compare Gpt-3.5-turbo GPT-4 GPT-4 32K GPT-3.5 Turbo 16K GPT-4 0613 GPT-4 32K 0613 GPT-3.5 Turbo 1106 GPT-4 Turbo 1106 GPT-4 Turbo GPT-3.5 Turbo 0125 GPT-4 Turbo 0125 GPT-4 Turbo 2024-04-09 GPT-4o GPT-4o mini o1-mini GPT-4.5 Preview GPT-4.1 GPT-4.1 Nano GPT-4.1 Mini o3 o4 Mini Chat Bison Gemini 1.0 Pro Gemini Ultra Gemini 1.0 Ultra Gemini 1.5 Pro Gemma 2 9B Gemma 2 27B Gemini 1.5 Flash-8B Gemini 1.5 Flash (002) Gemini 2.0 Flash-Lite Gemini 2.0 Flash Gemini 2.0 Pro Gemini 2.5 Pro Gemini 2.5 Flash Preview Claude 2 Claude Instant 1.2 Claude 2.1 Claude 3 Opus Claude 3 Sonnet Claude 3 Haiku Claude 3.5 Sonnet(Jun 2024) Claude 3.5 Sonnet(Oct 2024) Claude 3.5 Haiku Claude 3.7 Sonnet Claude 3.7 Sonnet Extended Thinking Claude 4 Sonnet Claude 4 Opus Llama 2 Chat 70B Llama 2 Chat 13B LLaMA 3.1 (405B) Apollo LLaMA 4 Scout LLaMA 4 Maverick Phi-4 Mistral 7B Instruct Mistral 8x7B Instruct Mistral Large Mistral Large 2 Qwen1.5-110B-Chat Qwen2-72B-Instruct Qwen2.5-14b-Instruct-1m Qwen2.5-72b-Instruct Qwen2.5-Vl-72B-Instruct Qwen-Turbo QwQ-32B-Preview Qwen-Plus Qwen-Max Qwen3-235B-A22 Qwen3-32B DeepSeek-V3 Deep Seek-R1 to Gpt-3.5-turbo GPT-4 GPT-4 32K GPT-3.5 Turbo 16K GPT-4 0613 GPT-4 32K 0613 GPT-3.5 Turbo 1106 GPT-4 Turbo 1106 GPT-4 Turbo GPT-3.5 Turbo 0125 GPT-4 Turbo 0125 GPT-4 Turbo 2024-04-09 GPT-4o GPT-4o mini o1-mini GPT-4.5 Preview GPT-4.1 GPT-4.1 Nano GPT-4.1 Mini o3 o4 Mini Chat Bison Gemini 1.0 Pro Gemini Ultra Gemini 1.0 Ultra Gemini 1.5 Pro Gemma 2 9B Gemma 2 27B Gemini 1.5 Flash-8B Gemini 1.5 Flash (002) Gemini 2.0 Flash-Lite Gemini 2.0 Flash Gemini 2.0 Pro Gemini 2.5 Pro Gemini 2.5 Flash Preview Claude 2 Claude Instant 1.2 Claude 2.1 Claude 3 Opus Claude 3 Sonnet Claude 3 Haiku Claude 3.5 Sonnet(Jun 2024) Claude 3.5 Sonnet(Oct 2024) Claude 3.5 Haiku Claude 3.7 Sonnet Claude 3.7 Sonnet Extended Thinking Claude 4 Sonnet Claude 4 Opus Llama 2 Chat 70B Llama 2 Chat 13B LLaMA 3.1 (405B) Apollo LLaMA 4 Scout LLaMA 4 Maverick Phi-4 Mistral 7B Instruct Mistral 8x7B Instruct Mistral Large Mistral Large 2 Qwen1.5-110B-Chat Qwen2-72B-Instruct Qwen2.5-14b-Instruct-1m Qwen2.5-72b-Instruct Qwen2.5-Vl-72B-Instruct Qwen-Turbo QwQ-32B-Preview Qwen-Plus Qwen-Max Qwen3-235B-A22 Qwen3-32B DeepSeek-V3 Deep Seek-R1 Overview
Gemini 2.5 Flash Preview was released 26 months after GPT-4.
Gemini 2.5 Flash Preview
GPT-4
Provider
The entity that provides this model.
Google
OpenAI
Input Context Window
The number of tokens supported by the input context window.
Maximum Output Tokens
The number of tokens that can be generated by the model in a single request.
Release Date
When the model was first released.
Apr 17, 2025
about 11 monthsago
2025-04-17
Gemini 2.5 Flash Preview
GPT-4
Rank
Arena Elo
95% CI
Votes
License
Knowledge Cutoff
Gemini 2.5 Flash Preview
GPT-4
Input
Cost of input data provided to the model.
Output
Cost of output tokens generated by the model.
Benchmarks
Compare relevant benchmarks between Gemini 2.5 Flash Preview and GPT-4 Instruct.
Gemini 2.5 Flash Preview
GPT-4
MMLU Evaluating LLM knowledge acquisition in zero-shot and few-shot settings.
MMMU A wide ranging multi-discipline and multimodal benchmark.
HellaSwag A challenging sentence completion benchmark.
to
GPT-4