Claude Opus 4.5 vs GPT-4 Vision Preview
Claude Opus 4.5 (2025) and GPT-4 Vision Preview (2023) are frontier reasoning models from Anthropic and OpenAI. Claude Opus 4.5 ships a 200K-token context window, while GPT-4 Vision Preview ships a 128K-token context window. On Massive Multi-discipline Multimodal Understanding, Claude Opus 4.5 leads by 24.7 pts. On pricing, Claude Opus 4.5 costs $5/1M input tokens versus $10/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Claude Opus 4.5 is ~100% cheaper at $5/1M; pay for GPT-4 Vision Preview only for coding workflow support.
Specs
| Specification | ||
|---|---|---|
| Released | 2025-11-01 | 2023-11-06 |
| Context window | 200K | 128K |
| Parameters | — | 1.76T (8x222B MoE)* |
| Architecture | decoder only | mixture of experts |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2025-12 | 2023-04 |
Pricing and availability
| Pricing attribute | Claude Opus 4.5 | GPT-4 Vision Preview |
|---|---|---|
| Input price | $5/1M tokens | $10/1M tokens |
| Output price | $25/1M tokens | $40/1M tokens |
| Providers |
Capabilities
| Capability | Claude Opus 4.5 | GPT-4 Vision Preview |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | No |
| Function calling | Yes | No |
| Tool use | Yes | No |
| Structured outputs | Yes | No |
| Code execution | Yes | Yes |
Benchmarks
| Benchmark | Claude Opus 4.5 | GPT-4 Vision Preview |
|---|---|---|
| Massive Multi-discipline Multimodal Understanding | 80.7 | 56.0 |
Deep dive
On shared benchmark coverage, Massive Multi-discipline Multimodal Understanding has Claude Opus 4.5 at 80.7 and GPT-4 Vision Preview at 56, with Claude Opus 4.5 ahead by 24.7 points. The largest visible gap is 24.7 points on Massive Multi-discipline Multimodal Understanding, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on reasoning mode: Claude Opus 4.5, function calling: Claude Opus 4.5, tool use: Claude Opus 4.5, and structured outputs: Claude Opus 4.5. Both models share vision, multimodal input, and code execution, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, Claude Opus 4.5 lists $5/1M input and $25/1M output tokens, while GPT-4 Vision Preview lists $10/1M input and $40/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts Claude Opus 4.5 lower by about $8 per million blended tokens. Availability is 5 providers versus 1, so concentration risk also matters.
Choose Claude Opus 4.5 when coding workflow support, larger context windows, and lower input-token cost are central to the workload. Choose GPT-4 Vision Preview when coding workflow support are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, Claude Opus 4.5 or GPT-4 Vision Preview?
Claude Opus 4.5 supports 200K tokens, while GPT-4 Vision Preview supports 128K tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, Claude Opus 4.5 or GPT-4 Vision Preview?
Claude Opus 4.5 is cheaper on tracked token pricing. Claude Opus 4.5 costs $5/1M input and $25/1M output tokens. GPT-4 Vision Preview costs $10/1M input and $40/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude Opus 4.5 or GPT-4 Vision Preview open source?
Claude Opus 4.5 is listed under Proprietary. GPT-4 Vision Preview is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, Claude Opus 4.5 or GPT-4 Vision Preview?
Both Claude Opus 4.5 and GPT-4 Vision Preview expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Which is better for multimodal input, Claude Opus 4.5 or GPT-4 Vision Preview?
Both Claude Opus 4.5 and GPT-4 Vision Preview expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface.
Where can I run Claude Opus 4.5 and GPT-4 Vision Preview?
Claude Opus 4.5 is available on Microsoft Foundry, Anthropic, GCP Vertex AI, AWS Bedrock, and OpenRouter. GPT-4 Vision Preview is available on Azure OpenAI. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-05-11. Data sourced from public model cards and provider documentation.