Models

Firebender supports the most powerful coding models:

Name	Context
GPT-6 Astra gpt-6-astra	1.1M
GPT-5.6 Sol gpt-5.6-sol	400K
GPT-5.6 Terra gpt-5.6-terra	400K
GPT-5.6 Luna gpt-5.6-luna	400K
Claude Fable 5.1 claude-fable-5-1	1.0M
Gemini 3.8 Flash gemini-3.8-flash	1.0M
Muse Spark 1.3 muse-spark-1.3	1.0M
Claude Opus 5 claude-opus-5	1.0M
Claude Sonnet 5 claude-sonnet-5	1.0M
Kimi K3 kimi-k3	1.0M
GPT-5.5 gpt-5.5	400K
GPT-5.4 gpt-5.4	400K
GPT-5.4 (Extra High Reasoning) gpt-5.4-xhigh	400K
GPT-5.4 mini gpt-5.4-mini	400K
GPT-5.4 nano gpt-5.4-nano	400K
GPT-5.3-Codex gpt-5.3-codex	400K
GPT-5.3-Codex (Low Reasoning) gpt-5.3-codex-low	400K
GPT-5.3-Codex (Extra High Reasoning) gpt-5.3-codex-extra-high	400K
GLM 5.3 glm-5.3	1.0M
GLM 5.3 Flash glm-5.3-flash	1.0M
GLM 5.2 glm-5.2	1.0M
Muse Spark 1.1 muse-spark-1.1	1.0M
Kimi K2.7 Code kimi-k2.7-code	262K
Claude Sonnet 4.6 claude-sonnet-4-6	200K
GPT-5.2-Codex gpt-5.2-codex	400K
Claude Sonnet 4.5 claude-sonnet-4-5-20250929	200K
Claude Opus 4.8 claude-opus-4-8	1.0M
Claude Opus 4.7 claude-opus-4-7	200K
Claude Opus 4.6 claude-opus-4-6	200K
Claude Haiku 4.5 claude-haiku-4-5-20251001	200K
DeepSeek V4 Pro 0813 deepseek-v4-pro-0813	1.0M
Qwen 3.8 Max qwen3.8-max	262K
Gemini 3.1 Pro Preview gemini-3.1-pro-preview	200K
Gemini 3.1 Flash-Lite Preview gemini-3.1-flash-lite-preview	1.0M
Nemotron Lightning 3.5 nemotron-lightning-3.5	262K
MiniMax M3 minimax-m3	512K
GLM 5.2 Fast glm-5.2-fast	1.0M
Kimi K2.6 kimi-k2.6	262K
GPT-5.4 (High Reasoning) gpt-5.4-high	400K
GPT-5.3-Codex (High Reasoning) gpt-5.3-codex-high	400K
GLM 4.7 Fast zai-glm-4.7-fast	131K
Gemini 3 Flash Preview gemini-3-flash-preview	1.0M
Gemini 2.5 Pro gemini-2.5-pro	1.0M
Grok 4.6 grok-4.6	500K
Grok 4.5 grok-4.5	500K
Grok 4.20 grok-4.20	1.0M
Grok 4.3 grok-4.3	1.0M
GPT-5.2 gpt-5.2	400K
GPT-5.2 Codex (High Reasoning) gpt-5.2-codex-high	400K

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Changing models

Select model with dropdown:

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:

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

Deep Links

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.

Name	Input	Cache Read	Cache Write	Output
GPT-6 Astra	$10.00 / $20.00	$1.00 / $2.00	$12.50 / $25.00	$50.00 / $75.00
GPT-5.6 Sol	$5.00 / $10.00	$0.50 / $1.00	$6.25 / $12.50	$30.00 / $45.00
GPT-5.6 Terra	$2.00 / $4.00	$0.20 / $0.40	$2.50 / $5.00	$12.00 / $18.00
GPT-5.6 Luna	$0.20 / $0.40	$0.02 / $0.04	$0.25 / $0.50	$1.20 / $1.80
Claude Fable 5.1	$10.00	$0.25	$12.50	$50.00
Gemini 3.8 Flash	$0.75 / $0.75	$0.07 / $0.07	—	$3.75 / $3.75
Muse Spark 1.3	$1.25	$0.15	—	$4.25
Claude Opus 5	$5.00	$0.50	$6.25	$25.00
Claude Sonnet 5	$2.00	$0.20	$2.50	$10.00
Kimi K3	$3.00	$0.30	—	$15.00
GPT-5.5	$5.00 / $10.00	$0.50 / $0.50	—	$30.00 / $45.00
GPT-5.4	$2.50 / $5.00	$0.25 / $0.25	—	$15.00 / $22.50
GPT-5.4 (Extra High Reasoning)	$2.50 / $5.00	$0.25 / $0.25	—	$15.00 / $22.50
GPT-5.4 mini	$0.75	$0.07	—	$4.50
GPT-5.4 nano	$0.20	$0.02	—	$1.25
GPT-5.3-Codex	$1.75	$0.17	—	$14.00
GPT-5.3-Codex (Low Reasoning)	$1.75	$0.17	—	$14.00
GPT-5.3-Codex (Extra High Reasoning)	$1.75	$0.17	—	$14.00
GLM 5.3	$1.40	$0.26	—	$4.40
GLM 5.3 Flash	$0.15	$0.03	—	$0.50
GLM 5.2	$1.40	$0.14	—	$4.40
Muse Spark 1.1	$1.25	$0.15	—	$4.25
Kimi K2.7 Code	$0.95	$0.19	—	$4.00
Claude Sonnet 4.6	$3.00	$0.30	$3.75	$15.00
GPT-5.2-Codex	$1.75	$0.17	—	$14.00
Claude Sonnet 4.5	$3.00	$0.30	$3.75	$15.00
Claude Opus 4.8	$5.00	$0.50	$6.25	$25.00
Claude Opus 4.7	$5.00	$0.50	$6.25	$25.00
Claude Opus 4.6	$5.00	$0.50	$6.25	$25.00
Claude Haiku 4.5	$1.00	$0.10	$1.25	$5.00
DeepSeek V4 Pro 0813	$1.32	$0.04	—	$3.96
Qwen 3.8 Max	$2.00	$0.25	—	$6.00
Gemini 3.1 Pro Preview	$2.00 / $4.00	$0.20 / $0.40	—	$12.00 / $18.00
Gemini 3.1 Flash-Lite Preview	$0.25 / $0.25	$0.03 / $0.03	—	$1.50 / $1.50
Nemotron Lightning 3.5	$0.05	$0.01	—	$0.20
MiniMax M3	$0.30	$0.06	—	$1.20
GLM 5.2 Fast	$2.10	$0.21	—	$6.60
Kimi K2.6	$0.95	$0.17	—	$4.00
GPT-5.4 (High Reasoning)	$2.50 / $5.00	$0.25 / $0.25	—	$15.00 / $22.50
GPT-5.3-Codex (High Reasoning)	$1.75	$0.17	—	$14.00
GLM 4.7 Fast	$2.25	—	—	$2.75
Gemini 3 Flash Preview	$0.50	$0.05	—	$3.00
Gemini 2.5 Pro	$1.25	—	—	$10.00
Grok 4.6	$2.00 / $4.00	$0.50 / $1.00	—	$6.00 / $12.00
Grok 4.5	$2.00 / $4.00	$0.30 / $0.60	—	$6.00 / $12.00
Grok 4.20	$1.25 / $2.50	$0.20 / $0.40	—	$2.50 / $5.00
Grok 4.3	$1.25 / $2.50	$0.20 / $0.40	—	$2.50 / $5.00
GPT-5.2	$1.75	$0.17	—	$14.00
GPT-5.2 Codex (High Reasoning)	$1.75	$0.17	—	$14.00