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Claude Opus 5.5 vs Claude Opus 4.6

Compare costs between Anthropic's Claude Opus 5.5 and Anthropic's Claude Opus 4.6. One typical prompt costs $0.0120 vs $0.0150.

Claude Opus 4.6 is still available, but Anthropic has released newer models. Anthropic names Claude Opus 5.5 as the replacement. Details

Cost Comparison

PromptsClaude Opus 5.5Claude Opus 4.6
1$0.0120$0.0150
100$1.20$1.50
1,000$12.00$15.00
10,000$120.00$150.00
100,000$1,200.00$1,500.00

Based on 500 input + 500 output tokens per prompt. Prices verified October 2026. Embed this calculator

At 10,000 requests per day, Claude Opus 5.5 costs $3,600.00/month vs Claude Opus 4.6 at $4,500.00/month — Claude Opus 5.5 is 20% cheaper.

Claude Opus 5.5 vs Claude Opus 4.6: Features & Specs
Claude Opus 5.5Claude Opus 4.6
Input price$4.00 / 1M$5.00 / 1M
Output price$20.00 / 1M$25.00 / 1M
Cached input$0.20 / 1M$0.50 / 1M
Typical prompt$0.0120$0.0150
Batch discount50% off50% off
Context window1M tokens1M tokens
Max output128,000 tokens128,000 tokens
Knowledge cutoffJun 2026May 2025
Input typesText, Images, PDFText, Images, PDF
Reasoning modeAlways onOptional
Open weightsNoNo
ReleasedSeptember 22, 2026February 5, 2026
StatusCurrentOlder, still available

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0input tokens
Estimated (~4 chars/token)

How many tokens you expect the model to generate per response

Showing a typical prompt (500 input + 500 output tokens) across 27 models. Paste your own prompt above for an exact count.

ModelPer PromptPrompts / $1Monthly
Anthropic$0.012083$36.00
Anthropic$0.015066$45.00
OpenAI$0.0003000.03¢3,333$0.9000
Mistral$0.0003750.037¢2,666$1.13
OpenAI (via Together)$0.0003750.037¢2,666$1.13
OpenAI$0.0007000.07¢1,428$2.10
DeepSeek$0.0007500.075¢1,333$2.25
Meta (via Together)$0.0009250.092¢1,081$2.77
Mistral$0.00100.1¢1,000$3.00
Google$0.00140.14¢714$4.20
xAI$0.00190.19¢533$5.63
Google$0.00220.22¢444$6.75
DeepSeek$0.00260.26¢378$7.92
Meta$0.00270.27¢363$8.25
Anthropic$0.00300.3¢333$9.00
xAI$0.00400.4¢250$12.00
Alibaba (Qwen)$0.00400.4¢250$12.00
Mistral$0.00450.45¢222$13.50
OpenAI$0.00600.6¢166$18.00
OpenAI$0.00600.6¢166$18.00
Anthropic$0.00600.6¢166$18.00
OpenAI$0.00700.7¢142$21.00
Google$0.00700.7¢142$21.00
Moonshot AI$0.00900.9¢111$27.00
OpenAI$0.012083$36.00
OpenAI$0.030033$90.00
Anthropic$0.030033$90.00

Prices from official provider pricing pages, verified October 2026.

Claude Opus 5.5 vs Claude Opus 4.6 — Frequently Asked Questions

Claude Opus 5.5 is 20% cheaper than Claude Opus 4.6. One typical prompt (500 input + 500 output tokens) costs $0.0120 on Claude Opus 5.5 and $0.0150 on Claude Opus 4.6. Claude Opus 5.5 charges $4.00/$20.00 per million tokens (input/output) vs Claude Opus 4.6's $5.00/$25.00.

It depends on your priorities. Claude Opus 5.5 is more cost-effective at $12.00 per 1,000 prompts. Claude Opus 4.6 may offer different capabilities or quality. Claude Opus 5.5 has a 1M context window vs Claude Opus 4.6's 1M. Use the calculator above to compare at your actual volume.

Beyond price: Claude Opus 5.5 accepts text, images and PDFs, writes up to 128,000 tokens per response, has a knowledge cutoff of June 2026 and always reasons before answering. Claude Opus 4.6 accepts text, images and PDFs, writes up to 128,000 tokens per response, has a knowledge cutoff of May 2025 and has an optional reasoning (thinking) mode. Claude Opus 5.5 has a 1M context window and Claude Opus 4.6 1M. See the specs table above for a side-by-side view.

At 10,000 requests per day, switching from Claude Opus 4.6 to Claude Opus 5.5 saves about $900.00/month — a 20% cut on every call. Savings scale linearly with volume.

At 100,000 daily requests, Claude Opus 5.5 costs $36,000.00/month and Claude Opus 4.6 costs $45,000.00/month — a difference of $9,000.00/month.