ModelRefs / o4 Mini vs Gemini 2.5 Flash — Benchmarks, Pricing & Coding…
o4 Mini vs Gemini 2.5 Flash — Benchmarks, Pricing & Coding…
o4 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
o4 Mini: o4 Mini is OpenAI's next-generation efficient reasoning model adding vision support to the mini reasoning tier. It is optimized for agentic tasks requiring both image understanding and step-by-step logic at low cost-per-task.
Context window: Gemini 2.5 Flash accepts up to 1,000,000 tokens, o4 Mini up to 200,000. Confirm the limit for your specific deployment channel before relying on it.
Gemini 2.5 Flash vs o4 Mini at a glance
| Attribute | Gemini 2.5 Flash | o4 Mini |
|---|---|---|
| Provider | OpenAI | |
| Released | 2025-03-01 | 2025-09-01 |
| Context window | 1,000,000 tokens | 200,000 tokens |
| Input price | $0.075/M tokens | $1.1/M tokens |
| Output price | $0.3/M tokens | $4.4/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 | o4 Mini | Reported |
|---|---|---|---|
| gpqa | 82.8 | 77.6 | Date not published |
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%, o4 Mini 63%. Gemini 2.5 Flash leads on this dimension.
- Reasoning: Gemini 2.5 Flash 83%, o4 Mini 78%. Gemini 2.5 Flash 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 o4 Mini vs Gemini 2.5 Flash — Benchmarks, Pricing & Coding….
Frequently asked questions
Which is better, o4 Mini or Gemini 2.5 Flash?
o4 Mini and Gemini 2.5 Flash target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is o4 Mini cheaper than Gemini 2.5 Flash?
Compare $0.00110 vs $0.00007 on this page.