Claude Opus 4.8 vs Gemini 2.5 Pro
Benchmarks, API pricing and specs, head to head. Data updated 2026-06-10.
Claude Opus 4.8
Anthropic · May 2026
Anthropic's flagship Opus with adaptive thinking, effort controls and a 1M context — 88.6% on SWE-bench Verified at $5/$25.
Gemini 2.5 Pro
70.9Google · Mar 2025
Google's 2025 workhorse flagship — first mainstream thinking model with a 1M context, still widely deployed.
The verdict
Claude Opus 4.8 wins 2 of the 2 benchmarks these models share, against 0 for Gemini 2.5 Pro. Gemini 2.5 Pro is about 2.9x cheaper per blended million tokens (3:1 input:output mix). Gemini 2.5 Pro also takes 1.0M of context versus 1M for Claude Opus 4.8.
Benchmark head-to-head 2–0
Specs & pricing
| Claude Opus 4.8 | Gemini 2.5 Pro | |
|---|---|---|
| modhub Index | — | 70.9 |
| Input price / 1M | $5 | $1.25 |
| Output price / 1M | $25 | $10 |
| Context window | 1M | 1.0M |
| Max output | 64K | 66K |
| Open weights | no | no |
| Reasoning model | yes | yes |
| Multimodal input | text, image | text, image, audio, video |
| Knowledge cutoff | Mar 2026 | Jan 2025 |
| Released | May 2026 | Mar 2025 |
| Example monthly cost* | $87.50 | $27.50 |
* 10M input + 1.5M output tokens per month at list prices, no caching. Green = better value on that row.
Frequently asked questions
- Which is better, Claude Opus 4.8 or Gemini 2.5 Pro?
- Claude Opus 4.8 wins 2 of the 2 benchmarks these models share, against 0 for Gemini 2.5 Pro. Gemini 2.5 Pro is about 2.9x cheaper per blended million tokens (3:1 input:output mix). Gemini 2.5 Pro also takes 1.0M of context versus 1M for Claude Opus 4.8.
- Which is cheaper, Claude Opus 4.8 or Gemini 2.5 Pro?
- Claude Opus 4.8 costs $5/$25 per million input/output tokens, while Gemini 2.5 Pro costs $1.25/$10. For a typical workload of 10M input and 1.5M output tokens per month, that's $87.50 versus $27.50.
- Which model is better for coding, Claude Opus 4.8 or Gemini 2.5 Pro?
- On SWE-bench Verified — the standard agentic-coding benchmark — Claude Opus 4.8 scores 88.6% versus 63.8% for Gemini 2.5 Pro, making Claude Opus 4.8 the stronger pick for coding agents.
More comparisons
Claude Opus 4.8 vs GPT-5.5Gemini 2.5 Pro vs GPT-5.5Claude Opus 4.8 vs GPT-5.2Gemini 2.5 Pro vs GPT-5.2Claude Opus 4.8 vs GPT-5.1Gemini 2.5 Pro vs GPT-5.1Claude Opus 4.8 vs GPT-5Gemini 2.5 Pro vs GPT-5Claude Opus 4.8 vs GPT-5 miniGemini 2.5 Pro vs GPT-5 miniClaude Opus 4.8 vs OpenAI o3Gemini 2.5 Pro vs OpenAI o3