One agent session
1M input tokens and 100K output tokens, no caching.
- Input1M x $1 = $1.00
- Output0.1M x $5 = $0.50
$1.50per session
Google - Closed weights
Gemini Robotics ER 2 Preview pricing and specs
Gemini Robotics ER 2 Preview is a closed-weights model from Google that costs $1 per 1M input tokens and $5 per 1M output tokens on the first-party API, with a 131K-token context window.
Last verified from ai.google.dev. All sources
- Input / 1M
- $1
- Output / 1M
- $5
- Context
- 131K tokens
- Weights
- Closed
Pricing per 1M tokens
| Item | Price / 1M tokens |
|---|---|
| Input | $1 |
| Output | $5 |
| Cache read | $0.10 |
| Batch inputBatch requests | $0.50 |
| Batch outputBatch requests | $2.50 |
Note: Embodied-reasoning vision-language model for robotics (text output; text, image, video and audio input), public preview. Prices shown apply through December 31, 2026; from January 1, 2027 they double to $2.00 input / $10.00 output / $0.20 cached (Batch $1.00 / $5.00 / $0.10). Batch cached input is $0.05. Context caching storage is $0.50 per 1M tokens per hour through Dec 31, 2026 ($1.00 after) rather than a per-write fee, so cache write is not stated. Output price includes thinking tokens. Only Standard and Batch tiers are listed. The separate gemini-robotics-er-2-streaming-preview Live API endpoint has the same input/output prices with no caching or batch. Not found in the Vercel AI Gateway model list. Public preview date from the Gemini API changelog (July 30, 2026).
Specs
- Context window
- 131,072 tokens
- Max output
- 65,536 tokens
- Release date
- Provider
- API model id
gemini-robotics-er-2-preview- Weights
- Closed weights
What Gemini Robotics ER 2 Preview costs in practice
Worked from the standard list rates above, with the math shown so you can swap in your own token counts.
A chat app
10,000 requests a day at 2K input and 500 output tokens each.
- Input20M x $1 = $20.00
- Output5M x $5 = $25.00
$45.00per day
$1,350.00 per 30-day month
The same session at a 90% cache hit
90% of the input is read from the prompt cache. The one-time cache write premium is not included.
- Cached input0.9M x $0.10 = $0.09
- Uncached input0.1M x $1 = $0.10
- Output0.1M x $5 = $0.50
$0.69per session
Compare with
| Model | Input / 1M | Output / 1M |
|---|---|---|
| Gemini Robotics ER 2 Preview (this page) | $1 | $5 |
| Claude Haiku 4.5Anthropic | $1 | $5 |
| GPT-5.4 MiniOpenAI | $0.75 | $4.50 |
| GLM-5.1Z.ai | $1.40 | $4.40 |
| GLM-5.2Z.ai | $1.40 | $4.40 |
| Gemini 3.6 FlashGoogle | $0.75 | $3.75 |
| Gemini 3.8 FlashGoogle | $0.75 | $3.75 |
| Gemini 3 Flash PreviewGoogle | $0.50 | $3 |
| Gemini 2.5 FlashGoogle | $0.30 | $2.50 |
| Gemini 3.5 Flash-LiteGoogle | $0.30 | $2.50 |
| Gemini 3.1 Flash-LiteGoogle | $0.25 | $1.50 |
Related reading
- Gemini Robotics ER 2: Video-Feeding Embodied Reasoning Model Opens to All DevelopersGemini Robotics ER 2 is public in the Gemini API. It watches live video to track progress, orchestrates VLA models as tools, and coordinates multiple robots.
- Do Your Agent Hooks Fail Open? Claude Code vs Codex vs Cursor vs Gemini CLIA guard hook that crashes, times out or points at a missing script lets the tool call through by default in Claude Code. v2.1.295 adds onFailure: block. Here is what each coding agent does when your policy hook breaks, with real test runs.
- EmbeddingGemma 2 Guide: Local Multimodal Embeddings for CodeEmbeddingGemma 2 is a 740M open model that embeds code, images, video and audio in one space. Specs, Matryoshka storage math, and where it breaks.
- Google AI Pro vs Gemini API: What Developers Actually GetGoogle AI Pro costs $19.99 a month and has no API key, but includes $10 of monthly Cloud credits. When the subscription wins and when to pay per token.
- How to Keep API Keys Away From Your AI Coding Agent: Claude Code vs Codex vs Cursor vs Gemini CLIA deny rule on .env stops cat but not a Python one-liner. Here are the three layers that actually keep secrets out of a coding agent's context - file rules, environment scrubbing and credential masking - and what Claude Code, Codex, Cursor and Gemini CLI give you for each, with real test runs.
- Google Gemini Agent: Coworker Agents With Their Own EmailGoogle's Gemini agent can create coworker agents with their own Workspace account, email and audit trail. What Google announced and what builders should copy.
FAQ
How much does Gemini Robotics ER 2 Preview cost per million tokens?
Gemini Robotics ER 2 Preview costs $1 per 1M input tokens and $5 per 1M output tokens on Google's first-party API, per ai.google.dev on October 17, 2026. Per 1M tokens, cache reads cost $0.10, and the batch rate is $0.50 input and $2.50 output.
What is Gemini Robotics ER 2 Preview's context window?
Gemini Robotics ER 2 Preview has a 131,072-token context window and returns up to 65,536 output tokens per response.
Are Gemini Robotics ER 2 Preview's weights open?
No. Gemini Robotics ER 2 Preview is a closed-weights model. You call it through Google's API as gemini-robotics-er-2-preview.
When was Gemini Robotics ER 2 Preview released?
Google released Gemini Robotics ER 2 Preview on July 30, 2026.
Sources
Last verified from ai.google.dev.
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