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Compare models

Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.

  1. Gemini 4 HydrogenGoogleRemove
  2. Kimi K3.1 ProMoonShot AIRemove
  3. Nova-3DeepgramRemove
  4. GPT-6.1 TerraOpenAIRemove

4 is the maximum. Remove one to add another.

gemini-4-hydrogen vs kimi-k3.1-pro vs nova-3 vs gpt-6.1-terra
AttributeGemini 4 Hydrogengemini-4-hydrogenKimi K3.1 Prokimi-k3.1-proNova-3nova-3GPT-6.1 Terragpt-6.1-terra
Pricing
Input$1.50 / 1M$2.00 / 1M— Not priced per input token$1.00 / 1M
Output$7.50 / 1M$10.00 / 1M— Not priced per output token$5.00 / 1M
Cache Write (5m)$1.50 / 1M$2.00 / 1MNot applicable$1.00 / 1M
Cache Write (1h)$1.50 / 1M$2.00 / 1MNot applicable$1.00 / 1M
Cache Read$1.50 / 1M$2.00 / 1MNot applicable$1.00 / 1M
Web Search$0 / 1M$0 / 1M$0 / 1M$0 / 1M
Context
Max context1M1MN/A1M
Max outputN/AN/AN/AN/A
Capabilities
VisionYesYesNoYes
Function CallingYesYesNoYes
JSON ModeYesYesNoYes
StreamingYesYesNoNo
Catalogue
ProviderGoogleMoonShot AIDeepgramOpenAI
Categorychatchatvoicechat
Charge typePay As You GoPay As You GoPay As You GoPay As You Go
Released——2026-07-15—
Description
SummaryGemini 4 Hydrogen is Google's high-efficiency multimodal model in the Gemini 4 family, optimized for high-throughput agentic workflows, coding, and multi-model routing. It delivers strong performance at lower cost and latency than Gemini 4 Carbon, supporting text, image, audio, video, and file inputs for versatile multimodal applications. Designed for scalable production workloads and long-horizon execution, Gemini 4 Hydrogen supports up to 1M output tokens through continuation and configurable reasoning effort levels (low, medium, high, and xhigh) to balance reasoning depth, speed, and cost. It is well suited for coding assistants, autonomous agents, complex workflow automation, and large-scale AI systems.Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model, building on Kimi K3 with enhanced post-training for advanced reasoning and autonomous task execution. It features a 1M-token context window and native image and video understanding, enabling complex, long-context multimodal workflows. Optimized for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, Kimi K3.1 Pro is well suited for autonomous software engineering, multimodal analysis, and complex professional workflows that require sustained reasoning and reliable execution.Deepgram Nova-3 speech-to-text. Billed per second of audio.GPT-6.1 Terra is OpenAI’s mid-tier model in the GPT-6.1 series, designed to balance capability, speed, and cost efficiency. Positioned below GPT-6.1 Sol, it delivers strong performance across everyday agentic workflows, coding, and professional writing, with particular strengths in screenshot understanding and on-screen content analysis. Optimized for high-volume production workloads, GPT-6.1 Terra is well suited for coding assistants, visual interface analysis, workflow automation, and scalable agentic applications that require reliable performance at an accessible cost.