ModelRefs / GPT-5 vs Gemini 2.5 Pro — Benchmarks, Pricing & Coding Comp…
GPT-5 vs Gemini 2.5 Pro — Benchmarks, Pricing & Coding Comp…
GPT-5 vs Gemini 2.5 Pro: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
Gemini 2.5 Pro: Gemini 2.5 Pro is Google DeepMind's experimental thinking model with a 2M-token multimodal context window, released in March 2025. It topped the LMSys Chatbot Arena leaderboard at launch and introduced adaptive reasoning budgets that balance response quality against latency.
GPT-5: GPT-5 is OpenAI's August 2025 reasoning model for coding, reasoning, and agentic tasks. The API model supports text input and output, image input, configurable reasoning effort, and an immutable gpt-5-2025-08-07 snapshot; OpenAI now classifies it as a previous-generation model.
Context window: Gemini 2.5 Pro accepts up to 2,000,000 tokens, GPT-5 up to 400,000. Confirm the limit for your specific deployment channel before relying on it.
Gemini 2.5 Pro vs GPT-5 at a glance
| Attribute | Gemini 2.5 Pro | GPT-5 |
|---|---|---|
| Provider | OpenAI | |
| Released | 2025-03-01 | 2025-08-07 |
| Context window | 2,000,000 tokens | 400,000 tokens |
| Input price | $1.25/M tokens | $1.25/M tokens |
| Output price | $10/M tokens | $10/M tokens |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision, audio, video | text, vision |
Benchmarks reported for both
| Benchmark | Gemini 2.5 Pro | GPT-5 | Reported |
|---|---|---|---|
| swe-bench | 67.2 | 74.9 | 2025-07-02 / 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
- Agentic: Gemini 2.5 Pro 66%, GPT-5 89%. GPT-5 leads on this dimension.
- Coding: Gemini 2.5 Pro 66%, GPT-5 81%. GPT-5 leads on this dimension.
- Cost Efficiency: Gemini 2.5 Pro 47%, GPT-5 47%. Both score the same 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 vs Gemini 2.5 Pro — Benchmarks, Pricing & Coding Comp….
Frequently asked questions
Which is better, GPT-5 or Gemini 2.5 Pro?
GPT-5 and Gemini 2.5 Pro target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is GPT-5 cheaper than Gemini 2.5 Pro?
Compare $0.00125 vs $0.00125 on this page.