Google
The latest voice foundation model from Google DeepMind, integrating extended chain-of-thought reasoning directly into live spoken dialogues.
262.144K ctx$0.0035 / min (Live Extended Thinking)
Introducing Gemini 2.5 Deep ThinkGoogleReleased August 1, 2025
Gemini 2.5 Deep Think
Google’s dedicated reasoning model utilizing test-time compute to solve Olympiad-level mathematics and competitive coding.
reasoning-llmProprietary API$2.00 / 1M tok (with Thinking)Context: 1.049M (1,048,576 tokens)Arena ELO: 1385
Technical Specifications
Architecture Type
Test-Time Compute Reasoning Transformer
Total Parameters
Undisclosed
Context Window
1.049M (1,048,576 tokens)
Max Output Tokens
65.536K (65,536 tokens)
Knowledge Cutoff
March 2025
Supported Modalities
text, code, reasoning
License & Access
Google Cloud API Terms of Service
Benchmark Evaluations
Math500
94.8
Aime 2024
86.7
Gpqa Diamond
72.1
Codeforces ELO
2280
Chatbot Arena ELO
1385
Deep Architectural Overview
Gemini 2.5 Deep Think dynamically scales inference-time reasoning steps before emitting final answers. It excels in verified theorem proving, scientific research, and complex system debugging.
Strengths & Considerations
Core Strengths
- World-class AIME & Olympiad math scores (86.7%)
- Transparent step-by-step thinking trace
- High resistance to hallucinations in logical proofs
Known Limitations
- Longer latency due to extended thinking loops
Token & API Pricing
Input Tokens (1M)$2.00
Output Tokens (1M)$8.00
Cached Input (1M)$0.5000
Pricing is verified directly against Google's developer documentation and API rate sheets.
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