LLM Comparison
Claude Opus 5 vs GPT-6 Sol
Side-by-side specs, pricing & capabilities · Updated September 2026
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2/6 models| Organization | ||
| OpenTools Score | 92 6.1 | |
| Family | Claude Opus | GPT-6 |
| Status | Current | Current |
| Release Date | Jul 2026 | Sep 2026 |
| Context Window | 1.0M tokens | 1.1M tokens |
| Input Price | $5.00/M tokens | $2.00/M tokens |
| Output Price | $25.00/M tokens | $10.00/M tokens |
| Pricing Notes | Claude Opus 5 is priced at $5 per million input tokens and $25 per million output tokens; fast mode is priced separately at Fable-level rates. | OpenAI standard API, USD per million tokens for prompts up to 272K input tokens: $2 input, $0.20 cached input, $2.50 cache writes, $10 output. Above 272K input tokens, the full request costs 2x input/cache and 1.5x output. Batch/Flex cost 50% of Standard; Fast costs 2x; regional processing adds 10% where available. Reasoning output tokens are charged at output rates. |
| Capabilities | textvisionreasoningcodingtool-useagentslong-context | textvisionreasoningcodingtool-uselong-contextcontext-caching |
| Training Cutoff | — | 2026-04-20 |
| Max Output | 128K tokens | 128K tokens |
| API Identifier | claude-opus-5 | gpt-6-sol |
| Benchmarks | ||
| Artificial Analysis Intelligence Index | 61artificial-analysis | — |
| Artificial Analysis Intelligence Index v4.1.1 | 63artificial-analysis | — |
| Artificial Analysis Intelligence Index v4.3 | 51https://artificialanalysis.ai/models/claude-opus-5 | — |
| GPQA Diamond | 93.2323artificial-analysis | — |
| SciCode | 56.3657artificial-analysis | — |
| Terminal-Bench 2.1 | 89.1386artificial-analysis | — |
| Artificial Analysis Intelligence Index v4.3.2 | — | 47.5276426437724artificial-analysis |
| View Claude Opus 5 | View GPT-6 Sol | |
Cost Calculator
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GPT-6 SolCheapest | $2.00 | $5.00 | $7.00 | — |
| Claude Opus 5 | $5.00 | $12.50 | $17.50 | +150% |
Anthropic
Claude Opus 5
Claude Opus 5 is Anthropic's Opus-class model for complex agentic coding and enterprise work. Official Claude docs list the claude-opus-5 API ID, 1M token context window, 128k max output, adaptive thinking, and $5 input / $25 output pricing per million tokens.
OpenAI
GPT-6 Sol
GPT-6 Sol is OpenAI's reasoning model for professional work. It accepts text and images, produces text, supports a 1,050,000-token context window and 128,000 output tokens, and is available through the Responses and Chat Completions APIs. OpenAI documents the exact gpt-6-sol identifier and standard token pricing.
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