API model · 6 comparisons
Claude Opus 5.5 compared
How Claude Opus 5.5 stacks up against other models on price, limits and the inputs it accepts. Pick a matchup for the full side-by-side, a monthly cost calculator and our verdict.
Prices checked 15 October 2026 from the OpenRouter API.
Claude Opus 5.5 at a glance
- Input / 1M tokens
- $4.00
- Output / 1M tokens
- $20.00
- Context window
- 1,000,000 tokens
- Longest reply
- 128,000 tokens
- Accepts
- file, image, text
- Providers on OpenRouter
- 5
- Best provider uptime, 24 h
- 100%
Compare Claude Opus 5.5 with
Claude Sonnet 5.5 vs Claude Opus 5.5
Sonnet 5.5 and Opus 5.5 are Anthropic's mid-range and top-tier models. They accept the same inputs and read the same amount of text. The big difference is price: Opus costs exactly twice as much.
See the comparison vs GPT-6 AstraClaude Opus 5.5 vs GPT-6 Astra
Claude Opus 5.5 and GPT-6 Astra are the premium models from Anthropic and OpenAI, aimed at hard coding, research and agent tasks. Astra costs about 2.5 times more than Opus.
See the comparison vs GPT-6.1 SolClaude Opus 5.5 vs GPT-6.1 Sol
Claude Opus 5.5 is Anthropic's top model. GPT-6.1 Sol is OpenAI's mid-priced all-rounder at half the price. Both handle documents, images, code and tool calls.
See the comparison vs Gemini 3.8 FlashClaude Opus 5.5 vs Gemini 3.8 Flash
Claude Opus 5.5 is a premium model for demanding text and coding work. Gemini 3.8 Flash is a much cheaper model that also accepts audio and video. They suit very different jobs.
See the comparison vs Claude Haiku 5.5Claude Haiku 5.5 vs Claude Opus 5.5
Haiku 5.5 and Opus 5.5 sit at opposite ends of Anthropic's range. Sorting thousands of support emails and fixing a tricky bug are very different jobs, and these two models are priced for those different jobs.
See the comparison vs DeepSeek V4.1 FlashClaude Opus 5.5 vs DeepSeek V4.1 Flash
Claude Opus 5.5 is a premium model, and DeepSeek V4.1 Flash is one of the cheapest capable models available. The price gap is enormous, so the real question is how much checking and correcting each one needs.
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