ModelRefs / GPT-4o vs Claude Opus 4
GPT-4o vs Claude Opus 4
GPT-4o vs Claude Opus 4: side-by-side benchmarks, pricing, context windows, coding ability and deployment. Pick the right model for your stack.
Overview
Claude Opus 4: Claude Opus 4 is Anthropic's May 2025 hybrid-reasoning model for complex coding, reasoning, multimodal analysis, and long-running agent workflows. The dated claude-opus-4-20250514 snapshot was retired on Anthropic-operated platforms on June 15, 2026 and is retained as a historical evaluation and migration reference.
GPT-4o: GPT-4o is OpenAI's May 2024 multimodal flagship, accepting text and image input across a 128,000-token context window with a 16,384-token maximum output and an October 2023 knowledge cutoff. OpenAI describes it as its most capable model outside the o-series reasoning line, and serves it through dated snapshots with gpt-4o-2024-08-06 as the default. The family is now deprecated on two schedules: gpt-4o-2024-08-06 and gpt-4o-2024-11-20 shut down on 14 January 2027 with gpt-6-luna as the replacement, and the original gpt-4o-2024-05-13 snapshot on 23 October 2026 with gpt-5.6-sol.
Context window: Claude Opus 4 accepts up to 200,000 tokens, GPT-4o up to 128,000. Confirm the limit for your specific deployment channel before relying on it.
Claude Opus 4 vs GPT-4o at a glance
| Attribute | Claude Opus 4 | GPT-4o |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Released | 2025-05-22 | 2024-05-13 |
| Context window | 200,000 tokens | 128,000 tokens |
| Input price | $15/M tokens | $2.5/M tokens |
| Output price | $75/M tokens | $10/M tokens |
| Licence | Proprietary | Proprietary |
| Self-hostable | No, hosted only | No, hosted only |
| Modalities | text, vision | text, vision, audio |
Benchmarks reported for both
| Benchmark | Claude Opus 4 | GPT-4o | Reported |
|---|---|---|---|
| GPQA Diamond (accuracy) | 79.6 | 49.9 | 2025-05-22 / 2024-11-21 |
| SWE-Bench Verified (resolved) | 72.5 | 33.2 | 2025-05-22 / 2024-08-13 |
Each row compares the same benchmark, the same reported metric, and the same task set. Scores are as published by their cited sources on the dates shown. Different runs still use different harnesses and prompts, so treat these as directional evidence rather than a head-to-head result.
Where they differ most
- Agentic: Claude Opus 4 63%, GPT-4o 33%. Claude Opus 4 leads on this dimension.
- Coding: Claude Opus 4 60%, GPT-4o 33%. Claude Opus 4 leads on this dimension.
- Reasoning: Claude Opus 4 79%, GPT-4o 61%. Claude Opus 4 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-4o vs Claude Opus 4.
Frequently asked questions
Which is better, GPT-4o or Claude Opus 4?
GPT-4o and Claude Opus 4 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is GPT-4o cheaper than Claude Opus 4?
Compare $0.00250 vs $0.0150 on this page.