ModelRefs / Phi-4 vs Claude Opus 4 — Benchmarks, Pricing & Coding Compa…
Phi-4 vs Claude Opus 4 — Benchmarks, Pricing & Coding Compa…
Phi-4 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.
Phi-4: Microsoft's 14B dense decoder-only open-weight text model, trained on 9.8T tokens with a synthetic-data-centered curriculum and available through the microsoft/phi-4 artifact and Microsoft Foundry.
Context window: Claude Opus 4 accepts up to 200,000 tokens, Phi-4 up to 16,384. Confirm the limit for your specific deployment channel before relying on it.
Claude Opus 4 vs Phi-4 at a glance
| Attribute | Claude Opus 4 | Phi-4 |
|---|---|---|
| Provider | Anthropic | Microsoft |
| Released | 2025-05-22 | 2024-12-12 |
| Context window | 200,000 tokens | 16,384 tokens |
| Input price | $15/M tokens | Free / self-hosted |
| Output price | $75/M tokens | Free / self-hosted |
| Licence | Proprietary | MIT |
| Self-hostable | No, hosted only | Yes, open weights |
| Modalities | text, vision | text |
Benchmarks reported for both
| Benchmark | Claude Opus 4 | Phi-4 | Reported |
|---|---|---|---|
| gpqa | 79.6 | 56.1 | 2025-05-22 / 2024-12-12 |
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
- Reasoning: Claude Opus 4 78%, Phi-4 65%. Claude Opus 4 leads on this dimension.
- Coding: Claude Opus 4 60%, Phi-4 67%. Phi-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 Phi-4 vs Claude Opus 4 — Benchmarks, Pricing & Coding Compa….
Frequently asked questions
Which is better, Phi-4 or Claude Opus 4?
Phi-4 and Claude Opus 4 target different workloads — see the benchmark and pricing tables for a side-by-side answer.
Is Phi-4 cheaper than Claude Opus 4?
Compare $0.00000 vs $0.0150 on this page.