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Claude Opus 5.5 vs MiMo-V2.6-Pro

Detailed technical comparison between Claude Opus 5.5 (Anthropic) and MiMo-V2.6-Pro (Xiaomi). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

Claude Opus 5.5: 0 WinsvsMiMo-V2.6-Pro: 6 Wins
Context Leader

MiMo-V2.6-Pro

1,048,576 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

MiMo-V2.6-Pro

$0.43 / MTok
Anthropicactive

Claude Opus 5.5

Claude Opus 5.5 is an advanced artificial intelligence model engineered by Anthropic. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, Claude Opus 5.5 represents a key architectural iteration in the Anthropic model family. First released in 2026-09-22, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,000,000 tokens (approximately 1,333 words), Claude Opus 5.5 processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View Claude Opus 5.5 Full Specs →
Xiaomiactive

MiMo-V2.6-Pro

MiMo-V2.6-Pro is an advanced artificial intelligence model engineered by Xiaomi. Tailored for complex multi-step reasoning, programming synthesis, and extended document comprehension, MiMo-V2.6-Pro represents a key architectural iteration in the Xiaomi model family. First released in 2026-09-21, it serves enterprise developers, research teams, and autonomous system architects requiring strict instruction compliance. Featuring an input capacity of 1,048,576 tokens (approximately 1,398 words), MiMo-V2.6-Pro processes multi-file code repositories, lengthy technical reports, and complex prompts in a single inference call.

View MiMo-V2.6-Pro Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationClaude Opus 5.5MiMo-V2.6-Pro
ProviderAnthropicXiaomi
Context Window1,000,000 tokens1,048,576 tokens🏆
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apimanaged api
Production StabilityBeta Access (est.)Beta Access (est.)
API AvailableYesYes
Released Date2026-09-222026-09-21

API Pricing Comparison

Input Price per Million Tokens

Claude Opus 5.5

$4.00

MiMo-V2.6-Pro

$0.43

Output Price per Million Tokens

Claude Opus 5.5

$20.00

MiMo-V2.6-Pro

$0.87

💡 Cost Ratio: MiMo-V2.6-Pro is 9.2x cheaper per input token than Claude Opus 5.5.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
80.4%vs86.8%+6.4% MiMo-V2.6-Pro
Claude Opus 5.5
MiMo-V2.6-Pro 🏆
HumanEvalPython coding & logic synthesis
78.6%vs86.0%+7.4% MiMo-V2.6-Pro
Claude Opus 5.5
MiMo-V2.6-Pro 🏆
MATHComplex mathematical problem solving
55.8%vs67.2%+11.4% MiMo-V2.6-Pro
Claude Opus 5.5
MiMo-V2.6-Pro 🏆
GPQAGraduate-level expert reasoning
41.2%vs48.6%+7.4% MiMo-V2.6-Pro
Claude Opus 5.5
MiMo-V2.6-Pro 🏆
HellaSwagCommonsense reasoning and inference
83.4%vs87.8%+4.4% MiMo-V2.6-Pro
Claude Opus 5.5
MiMo-V2.6-Pro 🏆
MT-BenchMulti-turn conversation flow quality
8.6%vs9.0%+0.4% MiMo-V2.6-Pro
Claude Opus 5.5
MiMo-V2.6-Pro 🏆

Claude Opus 5.5 Quirks & Gotchas

No developer gotchas reported.

MiMo-V2.6-Pro Quirks & Gotchas

No developer gotchas reported.

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