GLM-5.1 vs Gemini Robotics-ER 1.6 Preview vs Kimi K2.7 Code
Too close to call on our weighted score (Kimi K2.7 Code 51, Gemini Robotics-ER 1.6 Preview 50, GLM-5.1 37). The right pick depends on what you value most.
Z.ai (Zhipu)GLM-5.1
37/100- ECI149.9
- Price$1.40 / $4.40
- Context200K
GoogleGemini Robotics-ER 1.6 Preview
50/100- ECI—
- Price$1.00 / $5.00
- Context131K
Moonshot AIKimi K2.7 Code
51/100- ECI150.0
- Price$0.95 / $4.00
- Context262K
Too close to call
It is close. Our weighted score puts them within 1 points (Kimi K2.7 Code 51/100, Gemini Robotics-ER 1.6 Preview 50/100, GLM-5.1 37/100), so choose by what matters most for your work: Kimi K2.7 Code on price and Kimi K2.7 Code for long inputs. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
- CapabilityNot enough dataNo independent benchmark covers every model here yet
- Lowest priceKimi K2.7 CodeKimi K2.7 Code $1.71 · Gemini Robotics-ER 1.6 Preview $2.00 · GLM-5.1 $2.15 per 1M tokens (3:1 blend)
- Longest contextKimi K2.7 CodeKimi K2.7 Code 262,144 · GLM-5.1 200,000 · Gemini Robotics-ER 1.6 Preview 131,072 tokens
- Widest inputsGemini Robotics-ER 1.6 PreviewGLM-5.1: Text · Gemini Robotics-ER 1.6 Preview: Text, Images, Audio, Video · Kimi K2.7 Code: Text, Images, Video
- Self-hostingGLM-5.1 and Kimi K2.7 CodePublishes downloadable weights
| Measure | Weight | GLM-5.1 | Gemini Robotics-ER 1.6 Preview | Kimi K2.7 Code |
|---|---|---|---|---|
| Price | 50% | 34 | 36 | 39 |
| Inputs & features | 30% | 45 | 90 | 80 |
| Context window | 20% | 32 | 24 | 37 |
| Overall | 100% | 37/100 | 50/100 | 51/100 |
Left out because at least one model lacks the data: capability. The remaining weights were rescaled.
Every spec in one table
Highlighted cells lead their row. Dashes mean the data is not published.
| Specification | GLM-5.1Z.ai (Zhipu) | Gemini Robotics-ER 1.6 PreviewGoogle | Kimi K2.7 CodeMoonshot AI |
|---|---|---|---|
| Capability | |||
| Capabilities Index (ECI) | 149.9 | — | 150.0 (best) |
| ECI rank | #51 of 148 | — | #49 of 148 (best) |
| GPQA DiamondGraduate-level science questions | 89.9% (best) | — | 87.9% |
| FrontierMath Tiers 1–3Research-level mathematics | 36.8% | — | 54.0% (best) |
| OTIS Mock AIME 2024–2025Competition mathematics | 93.3% | — | 95.6% (best) |
| SWE-bench VerifiedFixing real GitHub issues | 74.2% | — | — |
| SimpleQA VerifiedShort factual questions | 34.0% | — | 36.5% (best) |
| Price per million tokens | |||
| Input | $1.40 | $1.00 | $0.95 (best) |
| Output | $4.40 | $5.00 | $4.00 (best) |
| Cached input | $0.26 | — | $0.19 (best) |
| Blended (3:1) | $2.15 | $2.00 | $1.71 (best) |
| Long-context rate | Same rate | Same rate | Same rate |
| Price source | Official Z.AI API | Median of 1 providers | Official Moonshot AI API |
| Limits | |||
| Context window | 200,000 tokens | 131,072 tokens | 262,144 tokens (best) |
| Max output | 131,072 tokens | 65,536 tokens | 262,144 tokens (best) |
| Inputs and features | |||
| Text | Yes | Yes | Yes |
| Images | No | Yes | Yes |
| PDFs | No | No | No |
| Audio | No | Yes | No |
| Video | No | Yes | Yes |
| Reasoning | Yes | Yes | Yes |
| Tool calling | Yes | Yes | Yes |
| Structured output | Yes | Yes | Yes |
| Availability | |||
| Weights | Open | Proprietary | Open |
| API model ID | glm-5.1 | — | kimi-k2.7-code |
| API providers | 40 | 1 | 51 (best) |
| Released | Apr 7, 2026 | Apr 14, 2026 | Jun 12, 2026 |
| Knowledge cutoff | — | Jan 2025 | Jan 2025 |
What would a month cost?
Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.
- GLM-5.1$22.80
- Gemini Robotics-ER 1.6 Preview$20.00
- Kimi K2.7 Code$17.50
Which should you choose?
Which is better: GLM-5.1, Gemini Robotics-ER 1.6 Preview or Kimi K2.7 Code?
It is close. Our weighted score puts them within 1 points (Kimi K2.7 Code 51/100, Gemini Robotics-ER 1.6 Preview 50/100, GLM-5.1 37/100), so choose by what matters most for your work: Kimi K2.7 Code on price and Kimi K2.7 Code for long inputs. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.
Which is cheaper, GLM-5.1, Gemini Robotics-ER 1.6 Preview or Kimi K2.7 Code?
Kimi K2.7 Code is cheaper at $0.95 input / $4.00 output per million tokens (official Moonshot AI API price). Gemini Robotics-ER 1.6 Preview costs $1.00 input / $5.00 output per million tokens (median across 1 API provider); GLM-5.1 costs $1.40 input / $4.40 output per million tokens (official Z.AI API price). At a typical mix of three input tokens to one output token, that is $1.71 per million tokens for Kimi K2.7 Code versus $2.00 for Gemini Robotics-ER 1.6 Preview (1.2× as much) and $2.15 for GLM-5.1 (1.3× as much).
Which scores higher on benchmarks?
There is no independent benchmark that covers all three models yet. GLM-5.1 has an ECI of 149.9, Gemini Robotics-ER 1.6 Preview has not been scored yet and Kimi K2.7 Code has an ECI of 150.0.
Which is better for coding?
There are no published SWE-bench Verified results for Gemini Robotics-ER 1.6 Preview and Kimi K2.7 Code yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. All three support tool calling for agent workflows.
Which has the bigger context window?
Kimi K2.7 Code has the largest context window at 262,144 tokens, against 200,000 for GLM-5.1 and 131,072 for Gemini Robotics-ER 1.6 Preview. Maximum output per response: GLM-5.1 up to 131,072, Gemini Robotics-ER 1.6 Preview up to 65,536, Kimi K2.7 Code up to 262,144 tokens.
Which can read images, PDFs, audio or video?
GLM-5.1 accepts text; Gemini Robotics-ER 1.6 Preview accepts text, images, audio and video; Kimi K2.7 Code accepts text, images and video. Gemini Robotics-ER 1.6 Preview handles the widest range of inputs.
Are any of these open source?
GLM-5.1 and Kimi K2.7 Code publishes its weights and can be self-hosted; Gemini Robotics-ER 1.6 Preview is proprietary.
Which is newer?
Kimi K2.7 Code is the newest, released Jun 12, 2026. Gemini Robotics-ER 1.6 Preview came out Apr 14, 2026; GLM-5.1 came out Apr 7, 2026. Knowledge cutoff: Gemini Robotics-ER 1.6 Preview Jan 2025, Kimi K2.7 Code Jan 2025.
How do you decide the winner?
Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Oct 4, 2026.
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