Claude Opus 5 vs MiMo-V2.6-Flash: Specs & Benchmark Comparison
Claude Opus 5 is developed by Anthropic, while MiMo-V2.6-Flash comes from Xiaomi. Claude Opus 5 was released in July 2026, and MiMo-V2.6-Flash followed 2 months later in September 2026. MiMo-V2.6-Flash has a published size of about 309 billion parameters; Anthropic has not disclosed the parameter count of Claude Opus 5.
The two models share 2 published benchmarks. Claude Opus 5 leads on 2 of them. The widest gaps are on Terminal-Bench 4.0, where Claude Opus 5 scores 51.8% against 28.8%; DeepSWE 1.1, where Claude Opus 5 scores 68.8% against 67.9%. Averaged across everything we track, Claude Opus 5 sits at 55.0% and MiMo-V2.6-Flash at 55.6%.
MiMo-V2.6-Flash is the cheaper API at $0.14 per million input tokens and $0.28 per million output tokens, roughly 36 times cheaper than Claude Opus 5 at $5 and $25. Both accept a context window of about 1M tokens. Claude Opus 5 accepts text and images as input, while MiMo-V2.6-Flash accepts text, images, audio, and video.
| Characteristic | Claude Opus 5 | MiMo-V2.6-Flash |
|---|---|---|
| Company | Anthropic | Xiaomi |
| Release Date | July 24, 2026 | September 22, 2026 |
| Parameters | — | 309B |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | 1.0M |
| Context (output) | 128K | — |
| Input Price / 1M | $5.00 | $0.14 |
| Output Price / 1M | $25.00 | $0.28 |
| Average Score | 55.0% | 55.6% |
| Benchmarks | ||
| Terminal-Bench 4.0 | 51.8% | 28.8% |
| DeepSWE 1.1 | 68.8% | 67.9% |
Visual Benchmark Comparison
Verdict
MiMo-V2.6-Flash leads in 2 out of 4 comparison categories.
Both models show comparable average scores: Claude Opus 5 — 0.5, MiMo-V2.6-Flash — 0.6.
MiMo-V2.6-Flash is 71.4x cheaper: input $0.14/1M vs $5.00/1M tokens.
Same context size: 1M tokens.
MiMo-V2.6-Flash is newer: released 9/22/2026 vs 7/24/2026.
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Frequently Asked Questions
Which is better for coding — Claude Opus 5 or MiMo-V2.6-Flash?
Which model is cheaper — Claude Opus 5 or MiMo-V2.6-Flash?
Which has a larger context window — Claude Opus 5 or MiMo-V2.6-Flash?
The Claude Opus 5 and MiMo-V2.6-Flash comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Claude Opus 5 or MiMo-V2.6-Flash page. See also the complete list of AI model comparisons.