Compare the listed model data for OpenAI GPT-5.4 Pro by OpenAI and Anthropic Claude Sonnet 4.6 by Anthropic. Benchmark and pricing records are not a controlled test and may change.
Data last updated: 2026-10-16. Verify current model details with each provider.
OpenAI GPT-5.4 Pro: 128K tokens; Anthropic Claude Sonnet 4.6: 200K tokens. Anthropic Claude Sonnet 4.6 has the larger listed context window. OpenAI GPT-5.4 Pro is listed for coding, reasoning, vision, multimodal input, agentic workflows, long-context tasks; Anthropic Claude Sonnet 4.6 is listed for coding, reasoning, vision, multimodal input, agentic workflows, long-context tasks. Shared catalog benchmark entries: MMLU: OpenAI GPT-5.4 Pro 93.5%; Anthropic Claude Sonnet 4.6 88.7%; HumanEval: OpenAI GPT-5.4 Pro 94.3%; Anthropic Claude Sonnet 4.6 85.4%; SWE-bench Verified: OpenAI GPT-5.4 Pro 68.4%; Anthropic Claude Sonnet 4.6 49.0%. These records are reference data, not a controlled head-to-head test; verify current pricing and specifications with each provider.
Use these model and provider links to verify current specifications, pricing, and availability.
Using only the catalog's listed per-million-token rates, 1M input plus 1M output tokens costs about $25 for OpenAI GPT-5.4 Pro and $18 for Anthropic Claude Sonnet 4.6. This excludes provider-specific discounts, caching, and other fees.
Choose OpenAI GPT-5.4 Pro when your task aligns with catalog-listed uses or strengths such as Enterprise software engineering requiring complex multi-file project management, Advanced data analysis, financial modeling, and quantitative research, Multimodal business intelligence: combining documents, charts, and data, Legal and compliance document analysis at scale.
Choose Anthropic Claude Sonnet 4.6 when your task aligns with catalog-listed uses or strengths such as Everyday professional coding: code review, bug fixing, feature implementation, Business writing: reports, emails, proposals, and documentation at volume, Customer support automation requiring nuanced, accurate responses, Research summarization and information extraction from documents.
OpenAI GPT-5.4 Pro — professional-grade reasoning and coding with extended context and enhanced accuracy.
Parameters: ~220B+ MoE (professional tier, exact size proprietary)
Context: 128K tokens
Catalog pricing: Via LITHOVEX AI free. OpenAI API: premium pricing.
Claude Sonnet 4.6 — Anthropic's fast, balanced model. High intelligence with low latency for everyday tasks and production use.
Parameters: ~70B (balanced tier, exact size proprietary)
Context: 200K tokens
Catalog pricing: Via LITHOVEX AI free. Anthropic API: mid-tier.
| Specification | OpenAI GPT-5.4 Pro | Anthropic Claude Sonnet 4.6 |
|---|---|---|
| Provider | OpenAI | Anthropic |
| Parameters | ~220B+ MoE (professional tier, exact size proprietary) | ~70B (balanced tier, exact size proprietary) |
| Context window | 128K tokens | 200K tokens |
| Maximum output | Not listed | Not listed |
| Catalog pricing | Via LITHOVEX AI free. OpenAI API: premium pricing. | Via LITHOVEX AI free. Anthropic API: mid-tier. |
| Listed input/output cost per 1M tokens | input $5, output $20 per 1M tokens | input $3, output $15 per 1M tokens |
| License | Proprietary | Proprietary |
| Coding support | Listed | Listed |
| Reasoning support | Listed | Listed |
| Vision input | Listed | Listed |
| Multimodal | Listed | Listed |
| Open weights | No | No |
| Benchmark: MMLU | 93.5% | 88.7% |
| Benchmark: HumanEval | 94.3% | 85.4% |
| Benchmark: SWE-bench Verified | 68.4% | 49.0% |
Figures are transcribed from LITHOVEX model records. Benchmark versions and evaluation setups may differ; pricing and specifications can change. Check each provider's current documentation before making a decision.
Read the OpenAI GPT-5.4 Pro model profile and Anthropic Claude Sonnet 4.6 model profile, or browse the model directory.