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Firebender supports the most powerful coding models:
NameContext
openaiGPT-5.2-Codex gpt-5.2-codex400K
anthropicClaude Sonnet 4.5 claude-sonnet-4-5-20250929200K
googleGemini 3 Flash Preview gemini-3-flash-preview1.0M
anthropicClaude Opus 4.5 claude-opus-4-5200K
openaiGPT-5.2 gpt-5.2400K
openaiGPT-5.1-Codex-Max gpt-5.1-codex-max400K
openaiGPT-5.1 gpt-5.1400K
firebenderFirebender-1 firebender-1200K
firebenderKimi K2.5 kimi-k2.5131K
zhipuGLM 4.7 zai-glm-4.7198K
zhipuGLM 4.7 Fast zai-glm-4.7-fast131K
zhipuGLM 4.6 zai-glm-4.6131K
googleGemini 3 Pro Preview gemini-3-pro-preview200K
anthropicClaude Haiku 4.5 claude-haiku-4-5-20251001200K
anthropicClaude Sonnet 4 claude-sonnet-4-20250514200K
openaiGPT-5-mini gpt-5-mini400K
openaiGPT-OSS-120b gpt-oss-120b131K
openaiGPT-4.1 gpt-4.11.0M
anthropicClaude-3.7 Sonnet claude-3.7-sonnet200K
anthropicClaude-3.5 Sonnet claude-3.5-sonnet200K
anthropicClaude Opus 4.1 claude-opus-4-1-20250805200K
anthropicClaude Opus 4 claude-opus-4-20250514200K
googleGemini 2.5 Pro gemini-2.5-pro1.0M
openaiOpenAI-o3 o3200K
openaiOpenAI-o4-mini o4-mini200K
openaiOpenAI-o3-mini o3-mini200K
openaiGPT-4o gpt-4o128K
xaiGrok-3 grok-3131K
deepseekDeepseek v3 deepseekv3128K
deepseekDeepseek r1 deepseekr1164K
xaiGrok 4 grok-4256K
xaiGrok 4.1 Fast grok-4-1-fast2.0M
xaiGrok Code Fast 1 grok-code-fast-1256K
xaiGrok 4 Fast grok-4-fast2.0M
openaiGPT-5.1 (Low Reasoning) gpt-5.1-low400K
openaiGPT-5.1 (High Reasoning) gpt-5.1-high400K
openaiGPT-5.1 (Priority) gpt-5.1-fast400K
openaiGPT-5.1 (Low Reasoning, Priority) gpt-5.1-low-fast400K
openaiGPT-5.1 (High Reasoning, Priority) gpt-5.1-high-fast400K
openaiGPT-5.1 Codex gpt-5.1-codex400K
openaiGPT-5.1 Codex (Low Reasoning) gpt-5.1-codex-low400K
openaiGPT-5.1 Codex (High Reasoning) gpt-5.1-codex-high400K
openaiGPT-5 Codex gpt-5-codex400K
openaiGPT-5 Pro gpt-5-pro400K
openaiGPT-5 gpt-5400K
openaiGPT-5 (Priority) gpt-5-fast400K
openaiGPT-5 (Low Reasoning) gpt-5-low400K
openaiGPT-5 (Low Reasoning, Priority) gpt-5-low-fast400K
openaiGPT-5 (High Reasoning) gpt-5-high400K
openaiGPT-5 (High Reasoning, Priority) gpt-5-high-fast400K
openaiGPT-5 Codex (Low Reasoning) gpt-5-codex-low400K
openaiGPT-5 Codex (High Reasoning) gpt-5-codex-high400K
openaiGPT-5.2 Pro gpt-5.2-pro400K
anthropicClaude Sonnet 4.5 (1M) claude-sonnet-4-5-1m1.0M
anthropicClaude Sonnet 4 (1M) claude-sonnet-4-1m1.0M
openaiGPT-5.2 Codex (High Reasoning) gpt-5.2-codex-high400K

Changing models

Select model with dropdown: Screenshot showing the model picker dropdown in the chat interface
Models can misreport their name and version at runtime. This is because they are often trained on data generated by previous versions of themself or other models.

Context Windows

A context window is the maximum span of tokens (text and code) a model can consider at once. The more prompts, files, and responses in a session, the more context is consumed. Firebender intelligently summarizes and shifts context around to balance speed and accuracy. An estimate of tokens used is provided: Screenshot showing the context window usage estimate at the bottom of the chat interface

Default Model

Default Model: Firebender attempts to select the best model for each task based on request complexity, model availability, rate limits.

Custom model controls and restriction

jetbrains://idea/firebender/chat?model=claude-haiku-4-5-20251001 Read more: Deep Links

Commands

Configure in firebender.json with "model": "claude-haiku-4-5-20251001". Read more: Commands

Organization restrictions

Companies may not want to support certain models or providers, and can restrict what models their team has access to. Team admins will need to add later models to the list when new models are released by providers. Get started: Model restrictions

Model Pricing

Firebender plans include usage at model provider API rates. For example, $30 of included usage on the Developer plan will be consumed based on your model selection and its price. Usage limits are shown in editor based on your current consumption. All prices are per million tokens.
NameInputCache ReadCache WriteOutput
GPT-5.2-Codex$1.75$0.17$14.00
Claude Sonnet 4.5$3.00$0.30$3.75$15.00
Gemini 3 Flash Preview$0.50$0.05$3.00
Claude Opus 4.5$5.00$0.50$6.25$25.00
GPT-5.2$1.75$0.17$14.00
GPT-5.1-Codex-Max$1.25$0.12$10.00
GPT-5.1$1.25$0.12$10.00
Firebender-1$0.90$0.30$0.90$5.00
Kimi K2.5$0.60$0.10$3.00
GLM 4.7$0.60$0.30$2.20
GLM 4.7 Fast$2.25$2.75
GLM 4.6$2.25$2.75
Gemini 3 Pro Preview$2.00 / $4.00$0.20 / $0.40$12.00 / $18.00
Claude Haiku 4.5$1.00$0.10$1.25$5.00
Claude Sonnet 4$3.00$0.30$3.75$15.00
GPT-5-mini$0.25$0.03$2.00
GPT-OSS-120b$1.00$1.00
GPT-4.1$2.00$0.50$8.00
Claude-3.7 Sonnet$3.00$0.30$3.75$15.00
Claude-3.5 Sonnet$3.00$0.30$3.75$15.00
Claude Opus 4.1$15.00$1.50$18.75$75.00
Claude Opus 4$15.00$1.50$18.75$75.00
Gemini 2.5 Pro$1.25$10.00
OpenAI-o3$2.00$0.50$8.00
OpenAI-o4-mini$1.10$0.28$4.40
OpenAI-o3-mini$1.10$0.55$4.40
GPT-4o$2.50$1.25$10.00
Grok-3$2.00$10.00
Deepseek v3$2.00$10.00
Deepseek r1$2.00$10.00
Grok 4$3.00$0.75$15.00
Grok 4.1 Fast$0.20$0.05$0.50
Grok Code Fast 1$0.20$0.02$1.50
Grok 4 Fast$0.20 / $0.40$0.05 / $0.05$0.50 / $1.00
GPT-5.1 (Low Reasoning)$1.25$0.12$10.00
GPT-5.1 (High Reasoning)$1.25$0.12$10.00
GPT-5.1 (Priority)$2.50$0.25$20.00
GPT-5.1 (Low Reasoning, Priority)$2.50$0.25$20.00
GPT-5.1 (High Reasoning, Priority)$2.50$0.25$20.00
GPT-5.1 Codex$1.25$0.12$10.00
GPT-5.1 Codex (Low Reasoning)$1.25$0.12$10.00
GPT-5.1 Codex (High Reasoning)$1.25$0.12$10.00
GPT-5 Codex$1.25$0.12$10.00
GPT-5 Pro$15.00$120.00
GPT-5$1.25$0.12$10.00
GPT-5 (Priority)$2.50$0.25$20.00
GPT-5 (Low Reasoning)$1.25$0.12$10.00
GPT-5 (Low Reasoning, Priority)$2.50$0.25$20.00
GPT-5 (High Reasoning)$1.25$0.12$10.00
GPT-5 (High Reasoning, Priority)$2.50$0.25$20.00
GPT-5 Codex (Low Reasoning)$1.25$0.12$10.00
GPT-5 Codex (High Reasoning)$1.25$0.12$10.00
GPT-5.2 Pro$21.00$168.00
Claude Sonnet 4.5 (1M)$3.00 / $6.00$0.30 / $0.60$3.75 / $7.50$15.00 / $22.50
Claude Sonnet 4 (1M)$3.00 / $6.00$0.30 / $0.60$3.75 / $7.50$15.00 / $22.50
GPT-5.2 Codex (High Reasoning)$1.75$0.17$14.00