Claude 3.7 Sonnet vs GPT-5.4
Claude 3.7 Sonnet (2024) and GPT-5.4 (2026) are frontier-tier reasoning models from Anthropic and OpenAI. Claude 3.7 Sonnet ships a 200K-token context window, while GPT-5.4 ships a not-yet-sourced context window. On MMLU PRO, GPT-5.4 leads by 7.2 pts. On pricing, GPT-5.4 costs $2.5/1M input tokens versus $3/1M for the alternative. This comparison covers specs, pricing, capabilities, benchmarks, provider availability, and production fit.
Pick GPT-5.4 for general evaluation; Claude 3.7 Sonnet is better when coding workflow support matters more.
Specs
| Released | 2024-03-04 | 2026-03-05 |
| Context window | 200K | — |
| Parameters | — | — |
| Architecture | decoder only | decoder only |
| License | Proprietary | Proprietary |
| Knowledge cutoff | 2024-11 | 2025-08 |
Pricing and availability
| Claude 3.7 Sonnet | GPT-5.4 | |
|---|---|---|
| Input price | $3/1M tokens | $2.5/1M tokens |
| Output price | $15/1M tokens | $15/1M tokens |
| Providers |
Capabilities
| Claude 3.7 Sonnet | GPT-5.4 | |
|---|---|---|
| Vision | ||
| Multimodal | ||
| Reasoning | ||
| Function calling | ||
| Tool use | ||
| Structured outputs | ||
| Code execution |
Benchmarks
| Benchmark | Claude 3.7 Sonnet | GPT-5.4 |
|---|---|---|
| MMLU PRO | 80.3 | 87.5 |
| Massive Multi-discipline Multimodal Understanding | 75.0 | 82.1 |
Deep dive
On shared benchmark coverage, MMLU PRO has Claude 3.7 Sonnet at 80.3 and GPT-5.4 at 87.5, with GPT-5.4 ahead by 7.2 points; Massive Multi-discipline Multimodal Understanding has Claude 3.7 Sonnet at 75 and GPT-5.4 at 82.1, with GPT-5.4 ahead by 7.1 points. The largest visible gap is 7.2 points on MMLU PRO, 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 vision: Claude 3.7 Sonnet. Both models share multimodal input, reasoning mode, function calling, and tool use, 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 3.7 Sonnet lists $3/1M input and $15/1M output tokens, while GPT-5.4 lists $2.5/1M input and $15/1M output tokens on the cheapest tracked provider. A 70/30 input-output blend puts GPT-5.4 lower by about $0.35 per million blended tokens. Availability is 6 providers versus 2, so concentration risk also matters.
Choose Claude 3.7 Sonnet when coding workflow support and broader provider choice are central to the workload. Choose GPT-5.4 when coding workflow support and lower input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which is cheaper, Claude 3.7 Sonnet or GPT-5.4?
GPT-5.4 is cheaper on tracked token pricing. Claude 3.7 Sonnet costs $3/1M input and $15/1M output tokens. GPT-5.4 costs $2.5/1M input and $15/1M output tokens. Provider discounts or batch pricing can still change the final bill.
Is Claude 3.7 Sonnet or GPT-5.4 open source?
Claude 3.7 Sonnet is listed under Proprietary. GPT-5.4 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 3.7 Sonnet or GPT-5.4?
Claude 3.7 Sonnet has the clearer documented vision signal in this comparison. If vision is mission-critical, validate it against the provider endpoint because model-level support and API-level exposure can differ.
Which is better for multimodal input, Claude 3.7 Sonnet or GPT-5.4?
Both Claude 3.7 Sonnet and GPT-5.4 expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for reasoning mode, Claude 3.7 Sonnet or GPT-5.4?
Both Claude 3.7 Sonnet and GPT-5.4 expose reasoning mode. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Where can I run Claude 3.7 Sonnet and GPT-5.4?
Claude 3.7 Sonnet is available on Snowflake Cortex, GCP Vertex AI, Replicate API, OpenRouter, and AWS Bedrock. GPT-5.4 is available on OpenAI API and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
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Last reviewed: 2026-04-24. Data sourced from public model cards and provider documentation.