Google: Gemma 4 31B

Google: Gemma 4 31B is a large language model API from Google, part of its Gemma 4 model family. At $0.120 per million input tokens and $0.350 per million output tokens, it sits in the budget tier — among the cheaper options for high-throughput or cost-sensitive workloads. Output tokens cost about 3× as much as input, so prompt-heavy workloads run noticeably cheaper than generation-heavy ones. A large 262K-token context window (≈393 pages of text) lets it take in whole books, large codebases, or lengthy transcripts in a single call. Beyond plain text it also accepts Image, Video input, so it can be applied to multimodal tasks rather than text alone. On Artificial Analysis's Intelligence Index it scores 29 (C grade), a useful proxy for its general reasoning strength relative to the other models tracked here. All prices on this page reflect OpenRouter's routed rates and are re-synced automatically every day; confirm against the provider's official pricing before committing to production.

• Google: Gemma 4 31B Input price: $0.12/M tokens
• Google: Gemma 4 31B Output price: $0.35/M tokens
• Context window: 262,144 tokens
• Provider: Google
• Model family: Gemma 4
• Modalities: Image, Text, Video
• Data source: OpenRouter, updated daily