Compare the listed model data for Anthropic Claude Opus 4.8 by Anthropic and OpenAI GPT-5.4 Pro by OpenAI. 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.
Anthropic Claude Opus 4.8: 200K tokens; OpenAI GPT-5.4 Pro: 128K tokens. Anthropic Claude Opus 4.8 has the larger listed context window. Anthropic Claude Opus 4.8 is listed for coding, reasoning, vision, multimodal input, agentic workflows, long-context tasks; OpenAI GPT-5.4 Pro is listed for coding, reasoning, vision, multimodal input, agentic workflows, long-context tasks. Shared catalog benchmark entries: MMLU: Anthropic Claude Opus 4.8 92.1%; OpenAI GPT-5.4 Pro 93.5%; HumanEval: Anthropic Claude Opus 4.8 90.5%; OpenAI GPT-5.4 Pro 94.3%; SWE-bench Verified: Anthropic Claude Opus 4.8 62.3%; OpenAI GPT-5.4 Pro 68.4%. 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 $36 for Anthropic Claude Opus 4.8 and $25 for OpenAI GPT-5.4 Pro. This excludes provider-specific discounts, caching, and other fees.
Choose Anthropic Claude Opus 4.8 when your task aligns with catalog-listed uses or strengths such as Complex enterprise analysis requiring maximum accuracy: financial modeling, legal review, scientific research, Long-document processing: contracts, research papers, technical specifications up to 200K tokens, Agentic software engineering: autonomous multi-file codebase changes and complex debugging, Graduate-level academic and scientific reasoning requiring deep domain knowledge.
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.
Anthropic's most powerful model ever. Deeper reasoning, stronger agentic coding, superior design sense, and sharper analytical precision than Opus 4.7.
Parameters: ~200B+ (frontier MoE, exact size proprietary)
Context: 200K tokens
Catalog pricing: Access via LITHOVEX AI free. Anthropic API: high-tier pricing.
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.
| Specification | Anthropic Claude Opus 4.8 | OpenAI GPT-5.4 Pro |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Parameters | ~200B+ (frontier MoE, exact size proprietary) | ~220B+ MoE (professional tier, exact size proprietary) |
| Context window | 200K tokens | 128K tokens |
| Maximum output | Not listed | Not listed |
| Catalog pricing | Access via LITHOVEX AI free. Anthropic API: high-tier pricing. | Via LITHOVEX AI free. OpenAI API: premium pricing. |
| Listed input/output cost per 1M tokens | input $6, output $30 per 1M tokens | input $5, output $20 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 | 92.1% | 93.5% |
| Benchmark: HumanEval | 90.5% | 94.3% |
| Benchmark: SWE-bench Verified | 62.3% | 68.4% |
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 Anthropic Claude Opus 4.8 model profile and OpenAI GPT-5.4 Pro model profile, or browse the model directory.