ModelRefs / GPT-5 Mini vs Gemini 2.5 Flash — Benchmarks, Pricing & Codi…
GPT-5 Mini vs Gemini 2.5 Flash — Benchmarks, Pricing & Codi…
GPT-5 Mini vs Gemini 2.5 Flash: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
GPT-5 Mini: GPT-5 Mini is OpenAI's August 2025 cost-efficient reasoning model for well-defined, latency-sensitive, and high-volume workloads. The API model supports text input and output, image input, configurable reasoning effort, and an immutable gpt-5-mini-2025-08-07 snapshot; OpenAI now classifies it as a previous-generation model.
Context window: Gemini 2.5 Flash accepts up to 1,000,000 tokens, GPT-5 Mini up to 400,000. Confirm the limit for your specific deployment channel before relying on it.
Gemini 2.5 Flash vs GPT-5 Mini at a glance
| Attribute | Gemini 2.5 Flash | GPT-5 Mini |
|---|---|---|
| Provider | OpenAI | |
| Released | 2025-03-01 | 2025-08-07 |
| Context window | 1,000,000 tokens | 400,000 tokens |
| Input price | $0.075/M tokens | $0.25/M tokens |
| Output price | $0.3/M tokens | $2/M tokens |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision, audio | text, vision |
Benchmarks reported for both
| Benchmark | Gemini 2.5 Flash | GPT-5 Mini | Reported |
|---|---|---|---|
| gpqa | 82.8 | 82.3 | 2025-08-07 |
Scores are as published by their cited sources on the dates shown. Different runs use different harnesses, prompts, and dates, so treat these as directional evidence rather than a head-to-head result.
Where they differ most
- Cost Efficiency: Gemini 2.5 Flash 95%, GPT-5 Mini 78%. Gemini 2.5 Flash leads on this dimension.
- Reasoning: Gemini 2.5 Flash 83%, GPT-5 Mini 87%. GPT-5 Mini leads on this dimension.
Capability scores are ModelRefs' own derived signals, not vendor claims or benchmark results. Validate against your own workload before relying on them.
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to GPT-5 Mini vs Gemini 2.5 Flash — Benchmarks, Pricing & Codi….
Frequently asked questions
Which is better, GPT-5 Mini or Gemini 2.5 Flash?
GPT-5 Mini and Gemini 2.5 Flash target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is GPT-5 Mini cheaper than Gemini 2.5 Flash?
Compare $0.00025 vs $0.00007 on this page.